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Finding the Fourth Proportional to 3,001.77, 4,502.52 and 921.69

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Solution

The fourth proportional to 3,001.77, 4,502.52 and 921.69 is: 1,382.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,001.77 : 4,502.52 = 921.69 : x
  2. Step 2: Convert to fraction form
    3,001.77/4,502.52 = 921.69/x
  3. Step 3: Cross multiply
    3,001.77x = 4,502.52 × 921.69
  4. Step 4: Simplify right side
    3,001.77x = 4,149,927.66
  5. Step 5: Solve for x
    x = 4,149,927.66/3,001.77
  6. Step 6: Final answer
    x = 1,382.49

Related Problems

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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.