Home / 5,071.78-7,614.96-4,989.16

Finding the Fourth Proportional to 5,071.78, 7,614.96 and 4,989.16

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Solution

The fourth proportional to 5,071.78, 7,614.96 and 4,989.16 is: 7,490.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,071.78 : 7,614.96 = 4,989.16 : x
  2. Step 2: Convert to fraction form
    5,071.78/7,614.96 = 4,989.16/x
  3. Step 3: Cross multiply
    5,071.78x = 7,614.96 × 4,989.16
  4. Step 4: Simplify right side
    5,071.78x = 37,992,253.83
  5. Step 5: Solve for x
    x = 37,992,253.83/5,071.78
  6. Step 6: Final answer
    x = 7,490.91

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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.