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Finding the Fourth Proportional to 1,353.62, 1,867.99 and 732.62

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Solution

The fourth proportional to 1,353.62, 1,867.99 and 732.62 is: 1,011.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.62 : 1,867.99 = 732.62 : x
  2. Step 2: Convert to fraction form
    1,353.62/1,867.99 = 732.62/x
  3. Step 3: Cross multiply
    1,353.62x = 1,867.99 × 732.62
  4. Step 4: Simplify right side
    1,353.62x = 1,368,517.04
  5. Step 5: Solve for x
    x = 1,368,517.04/1,353.62
  6. Step 6: Final answer
    x = 1,011.01

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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.