Home / 1,512.15-2,267.86-731.74

Finding the Fourth Proportional to 1,512.15, 2,267.86 and 731.74

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Solution

The fourth proportional to 1,512.15, 2,267.86 and 731.74 is: 1,097.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512.15 : 2,267.86 = 731.74 : x
  2. Step 2: Convert to fraction form
    1,512.15/2,267.86 = 731.74/x
  3. Step 3: Cross multiply
    1,512.15x = 2,267.86 × 731.74
  4. Step 4: Simplify right side
    1,512.15x = 1,659,483.88
  5. Step 5: Solve for x
    x = 1,659,483.88/1,512.15
  6. Step 6: Final answer
    x = 1,097.43

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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.