Home / 7,340.13-10,129.35-3,982.92

Finding the Fourth Proportional to 7,340.13, 10,129.35 and 3,982.92

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Solution

The fourth proportional to 7,340.13, 10,129.35 and 3,982.92 is: 5,496.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.13 : 10,129.35 = 3,982.92 : x
  2. Step 2: Convert to fraction form
    7,340.13/10,129.35 = 3,982.92/x
  3. Step 3: Cross multiply
    7,340.13x = 10,129.35 × 3,982.92
  4. Step 4: Simplify right side
    7,340.13x = 40,344,390.70
  5. Step 5: Solve for x
    x = 40,344,390.70/7,340.13
  6. Step 6: Final answer
    x = 5,496.41

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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.