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Finding the Fourth Proportional to 1,575.31, 2,362.31 and 844.75

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Solution

The fourth proportional to 1,575.31, 2,362.31 and 844.75 is: 1,266.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,575.31 : 2,362.31 = 844.75 : x
  2. Step 2: Convert to fraction form
    1,575.31/2,362.31 = 844.75/x
  3. Step 3: Cross multiply
    1,575.31x = 2,362.31 × 844.75
  4. Step 4: Simplify right side
    1,575.31x = 1,995,545.34
  5. Step 5: Solve for x
    x = 1,995,545.34/1,575.31
  6. Step 6: Final answer
    x = 1,266.77

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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.