Home / 2,174.76-3,001.20-1,180.04

Finding the Fourth Proportional to 2,174.76, 3,001.20 and 1,180.04

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Solution

The fourth proportional to 2,174.76, 3,001.20 and 1,180.04 is: 1,628.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.76 : 3,001.20 = 1,180.04 : x
  2. Step 2: Convert to fraction form
    2,174.76/3,001.20 = 1,180.04/x
  3. Step 3: Cross multiply
    2,174.76x = 3,001.20 × 1,180.04
  4. Step 4: Simplify right side
    2,174.76x = 3,541,536.05
  5. Step 5: Solve for x
    x = 3,541,536.05/2,174.76
  6. Step 6: Final answer
    x = 1,628.47

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Half scale
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Double scale
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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.