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Finding the Fourth Proportional to 1,165.62, 1,747.17 and 581.06

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Solution

The fourth proportional to 1,165.62, 1,747.17 and 581.06 is: 870.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.62 : 1,747.17 = 581.06 : x
  2. Step 2: Convert to fraction form
    1,165.62/1,747.17 = 581.06/x
  3. Step 3: Cross multiply
    1,165.62x = 1,747.17 × 581.06
  4. Step 4: Simplify right side
    1,165.62x = 1,015,203.33
  5. Step 5: Solve for x
    x = 1,015,203.33/1,165.62
  6. Step 6: Final answer
    x = 870.96

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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.