Home / 3,932.60-5,426.90-2,140.04

Finding the Fourth Proportional to 3,932.60, 5,426.90 and 2,140.04

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Solution

The fourth proportional to 3,932.60, 5,426.90 and 2,140.04 is: 2,953.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.60 : 5,426.90 = 2,140.04 : x
  2. Step 2: Convert to fraction form
    3,932.60/5,426.90 = 2,140.04/x
  3. Step 3: Cross multiply
    3,932.60x = 5,426.90 × 2,140.04
  4. Step 4: Simplify right side
    3,932.60x = 11,613,783.08
  5. Step 5: Solve for x
    x = 11,613,783.08/3,932.60
  6. Step 6: Final answer
    x = 2,953.21

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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.