Home / 7,072.24-10,608.36-1,878.12

Finding the Fourth Proportional to 7,072.24, 10,608.36 and 1,878.12

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Solution

The fourth proportional to 7,072.24, 10,608.36 and 1,878.12 is: 2,817.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.24 : 10,608.36 = 1,878.12 : x
  2. Step 2: Convert to fraction form
    7,072.24/10,608.36 = 1,878.12/x
  3. Step 3: Cross multiply
    7,072.24x = 10,608.36 × 1,878.12
  4. Step 4: Simplify right side
    7,072.24x = 19,923,760.24
  5. Step 5: Solve for x
    x = 19,923,760.24/7,072.24
  6. Step 6: Final answer
    x = 2,817.18

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.