Home / 3,932.16-5,423.34-2,869.77

Finding the Fourth Proportional to 3,932.16, 5,423.34 and 2,869.77

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Solution

The fourth proportional to 3,932.16, 5,423.34 and 2,869.77 is: 3,958.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.16 : 5,423.34 = 2,869.77 : x
  2. Step 2: Convert to fraction form
    3,932.16/5,423.34 = 2,869.77/x
  3. Step 3: Cross multiply
    3,932.16x = 5,423.34 × 2,869.77
  4. Step 4: Simplify right side
    3,932.16x = 15,563,738.43
  5. Step 5: Solve for x
    x = 15,563,738.43/3,932.16
  6. Step 6: Final answer
    x = 3,958.06

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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.