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Finding the Fourth Proportional to 2,751.32, 4,126.58 and 903.92

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Solution

The fourth proportional to 2,751.32, 4,126.58 and 903.92 is: 1,355.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751.32 : 4,126.58 = 903.92 : x
  2. Step 2: Convert to fraction form
    2,751.32/4,126.58 = 903.92/x
  3. Step 3: Cross multiply
    2,751.32x = 4,126.58 × 903.92
  4. Step 4: Simplify right side
    2,751.32x = 3,730,076.43
  5. Step 5: Solve for x
    x = 3,730,076.43/2,751.32
  6. Step 6: Final answer
    x = 1,355.74

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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.