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Finding the Fourth Proportional to 3,616.74, 5,425.11 and 1,308.24

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Solution

The fourth proportional to 3,616.74, 5,425.11 and 1,308.24 is: 1,962.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.74 : 5,425.11 = 1,308.24 : x
  2. Step 2: Convert to fraction form
    3,616.74/5,425.11 = 1,308.24/x
  3. Step 3: Cross multiply
    3,616.74x = 5,425.11 × 1,308.24
  4. Step 4: Simplify right side
    3,616.74x = 7,097,345.91
  5. Step 5: Solve for x
    x = 7,097,345.91/3,616.74
  6. Step 6: Final answer
    x = 1,962.36

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.