Home / 3,712.76-5,125.50-2,871.62

Finding the Fourth Proportional to 3,712.76, 5,125.50 and 2,871.62

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Solution

The fourth proportional to 3,712.76, 5,125.50 and 2,871.62 is: 3,964.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.76 : 5,125.50 = 2,871.62 : x
  2. Step 2: Convert to fraction form
    3,712.76/5,125.50 = 2,871.62/x
  3. Step 3: Cross multiply
    3,712.76x = 5,125.50 × 2,871.62
  4. Step 4: Simplify right side
    3,712.76x = 14,718,488.31
  5. Step 5: Solve for x
    x = 14,718,488.31/3,712.76
  6. Step 6: Final answer
    x = 3,964.30

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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.