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Finding the Fourth Proportional to 2,193.90, 3,291.18 and 732.71

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Solution

The fourth proportional to 2,193.90, 3,291.18 and 732.71 is: 1,099.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.90 : 3,291.18 = 732.71 : x
  2. Step 2: Convert to fraction form
    2,193.90/3,291.18 = 732.71/x
  3. Step 3: Cross multiply
    2,193.90x = 3,291.18 × 732.71
  4. Step 4: Simplify right side
    2,193.90x = 2,411,464.04
  5. Step 5: Solve for x
    x = 2,411,464.04/2,193.90
  6. Step 6: Final answer
    x = 1,099.17

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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.