Home / 6,629-9,945.28-2,187.52

Finding the Fourth Proportional to 6,629, 9,945.28 and 2,187.52

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Solution

The fourth proportional to 6,629, 9,945.28 and 2,187.52 is: 3,281.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,629 : 9,945.28 = 2,187.52 : x
  2. Step 2: Convert to fraction form
    6,629/9,945.28 = 2,187.52/x
  3. Step 3: Cross multiply
    6,629x = 9,945.28 × 2,187.52
  4. Step 4: Simplify right side
    6,629x = 21,755,498.91
  5. Step 5: Solve for x
    x = 21,755,498.91/6,629
  6. Step 6: Final answer
    x = 3,281.87

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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.