Home / 7,384.38-11,079.81-3,487.74

Finding the Fourth Proportional to 7,384.38, 11,079.81 and 3,487.74

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Solution

The fourth proportional to 7,384.38, 11,079.81 and 3,487.74 is: 5,233.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,384.38 : 11,079.81 = 3,487.74 : x
  2. Step 2: Convert to fraction form
    7,384.38/11,079.81 = 3,487.74/x
  3. Step 3: Cross multiply
    7,384.38x = 11,079.81 × 3,487.74
  4. Step 4: Simplify right side
    7,384.38x = 38,643,496.53
  5. Step 5: Solve for x
    x = 38,643,496.53/7,384.38
  6. Step 6: Final answer
    x = 5,233.14

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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.