Home / 3,837.59-5,296.18-2,158.90

Finding the Fourth Proportional to 3,837.59, 5,296.18 and 2,158.90

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Solution

The fourth proportional to 3,837.59, 5,296.18 and 2,158.90 is: 2,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,837.59 : 5,296.18 = 2,158.90 : x
  2. Step 2: Convert to fraction form
    3,837.59/5,296.18 = 2,158.90/x
  3. Step 3: Cross multiply
    3,837.59x = 5,296.18 × 2,158.90
  4. Step 4: Simplify right side
    3,837.59x = 11,433,912.46
  5. Step 5: Solve for x
    x = 11,433,912.46/3,837.59
  6. Step 6: Final answer
    x = 2,979.45

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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.