Home / 4,112.20-5,672.10-2,538.28

Finding the Fourth Proportional to 4,112.20, 5,672.10 and 2,538.28

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Solution

The fourth proportional to 4,112.20, 5,672.10 and 2,538.28 is: 3,501.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,112.20 : 5,672.10 = 2,538.28 : x
  2. Step 2: Convert to fraction form
    4,112.20/5,672.10 = 2,538.28/x
  3. Step 3: Cross multiply
    4,112.20x = 5,672.10 × 2,538.28
  4. Step 4: Simplify right side
    4,112.20x = 14,397,377.99
  5. Step 5: Solve for x
    x = 14,397,377.99/4,112.20
  6. Step 6: Final answer
    x = 3,501.14

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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.