Home / 3,836.57-5,294.18-2,158.22

Finding the Fourth Proportional to 3,836.57, 5,294.18 and 2,158.22

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Solution

The fourth proportional to 3,836.57, 5,294.18 and 2,158.22 is: 2,978.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,836.57 : 5,294.18 = 2,158.22 : x
  2. Step 2: Convert to fraction form
    3,836.57/5,294.18 = 2,158.22/x
  3. Step 3: Cross multiply
    3,836.57x = 5,294.18 × 2,158.22
  4. Step 4: Simplify right side
    3,836.57x = 11,425,967.90
  5. Step 5: Solve for x
    x = 11,425,967.90/3,836.57
  6. Step 6: Final answer
    x = 2,978.18

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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.