Home / 6,642.24-9,167.12-4,291.20

Finding the Fourth Proportional to 6,642.24, 9,167.12 and 4,291.20

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Solution

The fourth proportional to 6,642.24, 9,167.12 and 4,291.20 is: 5,922.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642.24 : 9,167.12 = 4,291.20 : x
  2. Step 2: Convert to fraction form
    6,642.24/9,167.12 = 4,291.20/x
  3. Step 3: Cross multiply
    6,642.24x = 9,167.12 × 4,291.20
  4. Step 4: Simplify right side
    6,642.24x = 39,337,945.34
  5. Step 5: Solve for x
    x = 39,337,945.34/6,642.24
  6. Step 6: Final answer
    x = 5,922.39

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Half scale
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Double scale
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Similar ratio
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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.