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Finding the Fourth Proportional to 1,891.95, 2,825.18 and 1,545.96

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Solution

The fourth proportional to 1,891.95, 2,825.18 and 1,545.96 is: 2,308.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.95 : 2,825.18 = 1,545.96 : x
  2. Step 2: Convert to fraction form
    1,891.95/2,825.18 = 1,545.96/x
  3. Step 3: Cross multiply
    1,891.95x = 2,825.18 × 1,545.96
  4. Step 4: Simplify right side
    1,891.95x = 4,367,607.54
  5. Step 5: Solve for x
    x = 4,367,607.54/1,891.95
  6. Step 6: Final answer
    x = 2,308.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.