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Finding the Fourth Proportional to 5,407.61, 8,108.51 and 2,774.03

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Solution

The fourth proportional to 5,407.61, 8,108.51 and 2,774.03 is: 4,159.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.61 : 8,108.51 = 2,774.03 : x
  2. Step 2: Convert to fraction form
    5,407.61/8,108.51 = 2,774.03/x
  3. Step 3: Cross multiply
    5,407.61x = 8,108.51 × 2,774.03
  4. Step 4: Simplify right side
    5,407.61x = 22,493,195.58
  5. Step 5: Solve for x
    x = 22,493,195.58/5,407.61
  6. Step 6: Final answer
    x = 4,159.55

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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.