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Finding the Fourth Proportional to 1,095.39, 1,511.33 and 652.95

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Solution

The fourth proportional to 1,095.39, 1,511.33 and 652.95 is: 900.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095.39 : 1,511.33 = 652.95 : x
  2. Step 2: Convert to fraction form
    1,095.39/1,511.33 = 652.95/x
  3. Step 3: Cross multiply
    1,095.39x = 1,511.33 × 652.95
  4. Step 4: Simplify right side
    1,095.39x = 986,819.66
  5. Step 5: Solve for x
    x = 986,819.66/1,095.39
  6. Step 6: Final answer
    x = 900.88

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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.