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Finding the Fourth Proportional to 1,505.87, 2,259.11 and 531.95

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Solution

The fourth proportional to 1,505.87, 2,259.11 and 531.95 is: 798.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505.87 : 2,259.11 = 531.95 : x
  2. Step 2: Convert to fraction form
    1,505.87/2,259.11 = 531.95/x
  3. Step 3: Cross multiply
    1,505.87x = 2,259.11 × 531.95
  4. Step 4: Simplify right side
    1,505.87x = 1,201,719.61
  5. Step 5: Solve for x
    x = 1,201,719.61/1,505.87
  6. Step 6: Final answer
    x = 798.03

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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.