Home / 5,101.97-7,649.76-2,139.62

Finding the Fourth Proportional to 5,101.97, 7,649.76 and 2,139.62

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Solution

The fourth proportional to 5,101.97, 7,649.76 and 2,139.62 is: 3,208.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.97 : 7,649.76 = 2,139.62 : x
  2. Step 2: Convert to fraction form
    5,101.97/7,649.76 = 2,139.62/x
  3. Step 3: Cross multiply
    5,101.97x = 7,649.76 × 2,139.62
  4. Step 4: Simplify right side
    5,101.97x = 16,367,541.24
  5. Step 5: Solve for x
    x = 16,367,541.24/5,101.97
  6. Step 6: Final answer
    x = 3,208.09

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1.5x scale

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.