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Finding the Fourth Proportional to 2,174.76, 3,001.18 and 1,243.24

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Solution

The fourth proportional to 2,174.76, 3,001.18 and 1,243.24 is: 1,715.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.76 : 3,001.18 = 1,243.24 : x
  2. Step 2: Convert to fraction form
    2,174.76/3,001.18 = 1,243.24/x
  3. Step 3: Cross multiply
    2,174.76x = 3,001.18 × 1,243.24
  4. Step 4: Simplify right side
    2,174.76x = 3,731,187.02
  5. Step 5: Solve for x
    x = 3,731,187.02/2,174.76
  6. Step 6: Final answer
    x = 1,715.68

Related Problems

Find fourth proportional to 1,087.38, 1,500.59 and 621.62
Half scale
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Double scale
Find fourth proportional to 2,175.76, 3,002.56 and 1,244.24
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.