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Finding the Fourth Proportional to 7,256.03, 10,877.90 and 2,871.10

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Solution

The fourth proportional to 7,256.03, 10,877.90 and 2,871.10 is: 4,304.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,256.03 : 10,877.90 = 2,871.10 : x
  2. Step 2: Convert to fraction form
    7,256.03/10,877.90 = 2,871.10/x
  3. Step 3: Cross multiply
    7,256.03x = 10,877.90 × 2,871.10
  4. Step 4: Simplify right side
    7,256.03x = 31,231,476.74
  5. Step 5: Solve for x
    x = 31,231,476.74/7,256.03
  6. Step 6: Final answer
    x = 4,304.21

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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.