Home / 3,858.60-5,319.92-2,530

Finding the Fourth Proportional to 3,858.60, 5,319.92 and 2,530

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Solution

The fourth proportional to 3,858.60, 5,319.92 and 2,530 is: 3,488.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.60 : 5,319.92 = 2,530 : x
  2. Step 2: Convert to fraction form
    3,858.60/5,319.92 = 2,530/x
  3. Step 3: Cross multiply
    3,858.60x = 5,319.92 × 2,530
  4. Step 4: Simplify right side
    3,858.60x = 13,459,397.60
  5. Step 5: Solve for x
    x = 13,459,397.60/3,858.60
  6. Step 6: Final answer
    x = 3,488.16

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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.