Home / 5,158.14-7,731.45-4,742.97

Finding the Fourth Proportional to 5,158.14, 7,731.45 and 4,742.97

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Solution

The fourth proportional to 5,158.14, 7,731.45 and 4,742.97 is: 7,109.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.14 : 7,731.45 = 4,742.97 : x
  2. Step 2: Convert to fraction form
    5,158.14/7,731.45 = 4,742.97/x
  3. Step 3: Cross multiply
    5,158.14x = 7,731.45 × 4,742.97
  4. Step 4: Simplify right side
    5,158.14x = 36,670,035.41
  5. Step 5: Solve for x
    x = 36,670,035.41/5,158.14
  6. Step 6: Final answer
    x = 7,109.16

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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.