Home / 3,472.90-4,791.09-2,147.20

Finding the Fourth Proportional to 3,472.90, 4,791.09 and 2,147.20

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Solution

The fourth proportional to 3,472.90, 4,791.09 and 2,147.20 is: 2,962.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.90 : 4,791.09 = 2,147.20 : x
  2. Step 2: Convert to fraction form
    3,472.90/4,791.09 = 2,147.20/x
  3. Step 3: Cross multiply
    3,472.90x = 4,791.09 × 2,147.20
  4. Step 4: Simplify right side
    3,472.90x = 10,287,428.45
  5. Step 5: Solve for x
    x = 10,287,428.45/3,472.90
  6. Step 6: Final answer
    x = 2,962.20

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1.5x scale

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.