Home / 1,372.88-2,049.17-1,276.56

Finding the Fourth Proportional to 1,372.88, 2,049.17 and 1,276.56

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Solution

The fourth proportional to 1,372.88, 2,049.17 and 1,276.56 is: 1,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372.88 : 2,049.17 = 1,276.56 : x
  2. Step 2: Convert to fraction form
    1,372.88/2,049.17 = 1,276.56/x
  3. Step 3: Cross multiply
    1,372.88x = 2,049.17 × 1,276.56
  4. Step 4: Simplify right side
    1,372.88x = 2,615,888.46
  5. Step 5: Solve for x
    x = 2,615,888.46/1,372.88
  6. Step 6: Final answer
    x = 1,905.40

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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.