Home / 3,863.61-5,330.39-2,538.03

Finding the Fourth Proportional to 3,863.61, 5,330.39 and 2,538.03

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Solution

The fourth proportional to 3,863.61, 5,330.39 and 2,538.03 is: 3,501.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.61 : 5,330.39 = 2,538.03 : x
  2. Step 2: Convert to fraction form
    3,863.61/5,330.39 = 2,538.03/x
  3. Step 3: Cross multiply
    3,863.61x = 5,330.39 × 2,538.03
  4. Step 4: Simplify right side
    3,863.61x = 13,528,677.04
  5. Step 5: Solve for x
    x = 13,528,677.04/3,863.61
  6. Step 6: Final answer
    x = 3,501.56

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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.