Home / 7,331.40-10,117.42-3,974.24

Finding the Fourth Proportional to 7,331.40, 10,117.42 and 3,974.24

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Solution

The fourth proportional to 7,331.40, 10,117.42 and 3,974.24 is: 5,484.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,331.40 : 10,117.42 = 3,974.24 : x
  2. Step 2: Convert to fraction form
    7,331.40/10,117.42 = 3,974.24/x
  3. Step 3: Cross multiply
    7,331.40x = 10,117.42 × 3,974.24
  4. Step 4: Simplify right side
    7,331.40x = 40,209,070.62
  5. Step 5: Solve for x
    x = 40,209,070.62/7,331.40
  6. Step 6: Final answer
    x = 5,484.50

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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.