Home / 6,629.52-9,139.17-4,387.65

Finding the Fourth Proportional to 6,629.52, 9,139.17 and 4,387.65

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Solution

The fourth proportional to 6,629.52, 9,139.17 and 4,387.65 is: 6,048.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,629.52 : 9,139.17 = 4,387.65 : x
  2. Step 2: Convert to fraction form
    6,629.52/9,139.17 = 4,387.65/x
  3. Step 3: Cross multiply
    6,629.52x = 9,139.17 × 4,387.65
  4. Step 4: Simplify right side
    6,629.52x = 40,099,479.25
  5. Step 5: Solve for x
    x = 40,099,479.25/6,629.52
  6. Step 6: Final answer
    x = 6,048.62

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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.