Home / 5,036.10-7,542.45-3,989.18

Finding the Fourth Proportional to 5,036.10, 7,542.45 and 3,989.18

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Solution

The fourth proportional to 5,036.10, 7,542.45 and 3,989.18 is: 5,974.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,036.10 : 7,542.45 = 3,989.18 : x
  2. Step 2: Convert to fraction form
    5,036.10/7,542.45 = 3,989.18/x
  3. Step 3: Cross multiply
    5,036.10x = 7,542.45 × 3,989.18
  4. Step 4: Simplify right side
    5,036.10x = 30,088,152.98
  5. Step 5: Solve for x
    x = 30,088,152.98/5,036.10
  6. Step 6: Final answer
    x = 5,974.49

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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.