Home / 7,134.57-9,845.28-4,149.72

Finding the Fourth Proportional to 7,134.57, 9,845.28 and 4,149.72

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Solution

The fourth proportional to 7,134.57, 9,845.28 and 4,149.72 is: 5,726.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,134.57 : 9,845.28 = 4,149.72 : x
  2. Step 2: Convert to fraction form
    7,134.57/9,845.28 = 4,149.72/x
  3. Step 3: Cross multiply
    7,134.57x = 9,845.28 × 4,149.72
  4. Step 4: Simplify right side
    7,134.57x = 40,855,155.32
  5. Step 5: Solve for x
    x = 40,855,155.32/7,134.57
  6. Step 6: Final answer
    x = 5,726.37

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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.