Home / 7,319.60-10,980.17-2,125.48

Finding the Fourth Proportional to 7,319.60, 10,980.17 and 2,125.48

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Solution

The fourth proportional to 7,319.60, 10,980.17 and 2,125.48 is: 3,188.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.60 : 10,980.17 = 2,125.48 : x
  2. Step 2: Convert to fraction form
    7,319.60/10,980.17 = 2,125.48/x
  3. Step 3: Cross multiply
    7,319.60x = 10,980.17 × 2,125.48
  4. Step 4: Simplify right side
    7,319.60x = 23,338,066.20
  5. Step 5: Solve for x
    x = 23,338,066.20/7,319.60
  6. Step 6: Final answer
    x = 3,188.43

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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.