Home / 3,132.66-4,321.17-2,070.42

Finding the Fourth Proportional to 3,132.66, 4,321.17 and 2,070.42

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Solution

The fourth proportional to 3,132.66, 4,321.17 and 2,070.42 is: 2,855.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.66 : 4,321.17 = 2,070.42 : x
  2. Step 2: Convert to fraction form
    3,132.66/4,321.17 = 2,070.42/x
  3. Step 3: Cross multiply
    3,132.66x = 4,321.17 × 2,070.42
  4. Step 4: Simplify right side
    3,132.66x = 8,946,636.79
  5. Step 5: Solve for x
    x = 8,946,636.79/3,132.66
  6. Step 6: Final answer
    x = 2,855.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.