Home / 5,251.54-7,247.10-2,861.51

Finding the Fourth Proportional to 5,251.54, 7,247.10 and 2,861.51

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Solution

The fourth proportional to 5,251.54, 7,247.10 and 2,861.51 is: 3,948.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.54 : 7,247.10 = 2,861.51 : x
  2. Step 2: Convert to fraction form
    5,251.54/7,247.10 = 2,861.51/x
  3. Step 3: Cross multiply
    5,251.54x = 7,247.10 × 2,861.51
  4. Step 4: Simplify right side
    5,251.54x = 20,737,598.58
  5. Step 5: Solve for x
    x = 20,737,598.58/5,251.54
  6. Step 6: Final answer
    x = 3,948.86

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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.