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Finding the Fourth Proportional to 1,197.30, 1,652.22 and 725.19

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Solution

The fourth proportional to 1,197.30, 1,652.22 and 725.19 is: 1,000.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197.30 : 1,652.22 = 725.19 : x
  2. Step 2: Convert to fraction form
    1,197.30/1,652.22 = 725.19/x
  3. Step 3: Cross multiply
    1,197.30x = 1,652.22 × 725.19
  4. Step 4: Simplify right side
    1,197.30x = 1,198,173.42
  5. Step 5: Solve for x
    x = 1,198,173.42/1,197.30
  6. Step 6: Final answer
    x = 1,000.73

Related Problems

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Half scale
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Double scale
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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.