Home / 3,957.24-5,461.18-2,278.91

Finding the Fourth Proportional to 3,957.24, 5,461.18 and 2,278.91

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Solution

The fourth proportional to 3,957.24, 5,461.18 and 2,278.91 is: 3,145.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.24 : 5,461.18 = 2,278.91 : x
  2. Step 2: Convert to fraction form
    3,957.24/5,461.18 = 2,278.91/x
  3. Step 3: Cross multiply
    3,957.24x = 5,461.18 × 2,278.91
  4. Step 4: Simplify right side
    3,957.24x = 12,445,527.77
  5. Step 5: Solve for x
    x = 12,445,527.77/3,957.24
  6. Step 6: Final answer
    x = 3,145.00

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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.