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Finding the Fourth Proportional to 1,522, 2,278.50 and 1,260.88

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Solution

The fourth proportional to 1,522, 2,278.50 and 1,260.88 is: 1,887.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,522 : 2,278.50 = 1,260.88 : x
  2. Step 2: Convert to fraction form
    1,522/2,278.50 = 1,260.88/x
  3. Step 3: Cross multiply
    1,522x = 2,278.50 × 1,260.88
  4. Step 4: Simplify right side
    1,522x = 2,872,915.08
  5. Step 5: Solve for x
    x = 2,872,915.08/1,522
  6. Step 6: Final answer
    x = 1,887.59

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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.