Home / 5,385.11-7,432.28-3,146.94

Finding the Fourth Proportional to 5,385.11, 7,432.28 and 3,146.94

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Solution

The fourth proportional to 5,385.11, 7,432.28 and 3,146.94 is: 4,343.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.11 : 7,432.28 = 3,146.94 : x
  2. Step 2: Convert to fraction form
    5,385.11/7,432.28 = 3,146.94/x
  3. Step 3: Cross multiply
    5,385.11x = 7,432.28 × 3,146.94
  4. Step 4: Simplify right side
    5,385.11x = 23,388,923.49
  5. Step 5: Solve for x
    x = 23,388,923.49/5,385.11
  6. Step 6: Final answer
    x = 4,343.26

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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.