Home / 5,251.34-7,245.30-3,125.80

Finding the Fourth Proportional to 5,251.34, 7,245.30 and 3,125.80

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Solution

The fourth proportional to 5,251.34, 7,245.30 and 3,125.80 is: 4,312.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.34 : 7,245.30 = 3,125.80 : x
  2. Step 2: Convert to fraction form
    5,251.34/7,245.30 = 3,125.80/x
  3. Step 3: Cross multiply
    5,251.34x = 7,245.30 × 3,125.80
  4. Step 4: Simplify right side
    5,251.34x = 22,647,341.56
  5. Step 5: Solve for x
    x = 22,647,341.56/5,251.34
  6. Step 6: Final answer
    x = 4,312.68

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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.