Home / 3,752.14-5,178.18-2,158.90

Finding the Fourth Proportional to 3,752.14, 5,178.18 and 2,158.90

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Solution

The fourth proportional to 3,752.14, 5,178.18 and 2,158.90 is: 2,979.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,752.14 : 5,178.18 = 2,158.90 : x
  2. Step 2: Convert to fraction form
    3,752.14/5,178.18 = 2,158.90/x
  3. Step 3: Cross multiply
    3,752.14x = 5,178.18 × 2,158.90
  4. Step 4: Simplify right side
    3,752.14x = 11,179,172.80
  5. Step 5: Solve for x
    x = 11,179,172.80/3,752.14
  6. Step 6: Final answer
    x = 2,979.41

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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.