Home / 5,513.60-8,260.80-3,459.20

Finding the Fourth Proportional to 5,513.60, 8,260.80 and 3,459.20

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Solution

The fourth proportional to 5,513.60, 8,260.80 and 3,459.20 is: 5,182.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,513.60 : 8,260.80 = 3,459.20 : x
  2. Step 2: Convert to fraction form
    5,513.60/8,260.80 = 3,459.20/x
  3. Step 3: Cross multiply
    5,513.60x = 8,260.80 × 3,459.20
  4. Step 4: Simplify right side
    5,513.60x = 28,575,759.36
  5. Step 5: Solve for x
    x = 28,575,759.36/5,513.60
  6. Step 6: Final answer
    x = 5,182.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.