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Finding the Fourth Proportional to 732.11, 1,095.80 and 384.95

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Solution

The fourth proportional to 732.11, 1,095.80 and 384.95 is: 576.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    732.11 : 1,095.80 = 384.95 : x
  2. Step 2: Convert to fraction form
    732.11/1,095.80 = 384.95/x
  3. Step 3: Cross multiply
    732.11x = 1,095.80 × 384.95
  4. Step 4: Simplify right side
    732.11x = 421,828.21
  5. Step 5: Solve for x
    x = 421,828.21/732.11
  6. Step 6: Final answer
    x = 576.18

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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.