Home / 3,929.34-5,422.50-2,250.63

Finding the Fourth Proportional to 3,929.34, 5,422.50 and 2,250.63

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Solution

The fourth proportional to 3,929.34, 5,422.50 and 2,250.63 is: 3,105.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.34 : 5,422.50 = 2,250.63 : x
  2. Step 2: Convert to fraction form
    3,929.34/5,422.50 = 2,250.63/x
  3. Step 3: Cross multiply
    3,929.34x = 5,422.50 × 2,250.63
  4. Step 4: Simplify right side
    3,929.34x = 12,204,041.18
  5. Step 5: Solve for x
    x = 12,204,041.18/3,929.34
  6. Step 6: Final answer
    x = 3,105.88

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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.