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Finding the Fourth Proportional to 2,751.42, 4,127.51 and 901.92

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Solution

The fourth proportional to 2,751.42, 4,127.51 and 901.92 is: 1,353.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751.42 : 4,127.51 = 901.92 : x
  2. Step 2: Convert to fraction form
    2,751.42/4,127.51 = 901.92/x
  3. Step 3: Cross multiply
    2,751.42x = 4,127.51 × 901.92
  4. Step 4: Simplify right side
    2,751.42x = 3,722,683.82
  5. Step 5: Solve for x
    x = 3,722,683.82/2,751.42
  6. Step 6: Final answer
    x = 1,353.00

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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.