Home / 1,517.76-2,278.56-1,437.12

Finding the Fourth Proportional to 1,517.76, 2,278.56 and 1,437.12

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Solution

The fourth proportional to 1,517.76, 2,278.56 and 1,437.12 is: 2,157.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.76 : 2,278.56 = 1,437.12 : x
  2. Step 2: Convert to fraction form
    1,517.76/2,278.56 = 1,437.12/x
  3. Step 3: Cross multiply
    1,517.76x = 2,278.56 × 1,437.12
  4. Step 4: Simplify right side
    1,517.76x = 3,274,564.15
  5. Step 5: Solve for x
    x = 3,274,564.15/1,517.76
  6. Step 6: Final answer
    x = 2,157.50

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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.