Home / 5,171.02-7,135.97-2,813.15

Finding the Fourth Proportional to 5,171.02, 7,135.97 and 2,813.15

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Solution

The fourth proportional to 5,171.02, 7,135.97 and 2,813.15 is: 3,882.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.02 : 7,135.97 = 2,813.15 : x
  2. Step 2: Convert to fraction form
    5,171.02/7,135.97 = 2,813.15/x
  3. Step 3: Cross multiply
    5,171.02x = 7,135.97 × 2,813.15
  4. Step 4: Simplify right side
    5,171.02x = 20,074,557.78
  5. Step 5: Solve for x
    x = 20,074,557.78/5,171.02
  6. Step 6: Final answer
    x = 3,882.13

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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.