Home / 3,957.22-5,461.73-2,279.76

Finding the Fourth Proportional to 3,957.22, 5,461.73 and 2,279.76

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Solution

The fourth proportional to 3,957.22, 5,461.73 and 2,279.76 is: 3,146.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.22 : 5,461.73 = 2,279.76 : x
  2. Step 2: Convert to fraction form
    3,957.22/5,461.73 = 2,279.76/x
  3. Step 3: Cross multiply
    3,957.22x = 5,461.73 × 2,279.76
  4. Step 4: Simplify right side
    3,957.22x = 12,451,433.58
  5. Step 5: Solve for x
    x = 12,451,433.58/3,957.22
  6. Step 6: Final answer
    x = 3,146.51

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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.