Home / 7,189.18-10,780.35-2,508.62

Finding the Fourth Proportional to 7,189.18, 10,780.35 and 2,508.62

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Solution

The fourth proportional to 7,189.18, 10,780.35 and 2,508.62 is: 3,761.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189.18 : 10,780.35 = 2,508.62 : x
  2. Step 2: Convert to fraction form
    7,189.18/10,780.35 = 2,508.62/x
  3. Step 3: Cross multiply
    7,189.18x = 10,780.35 × 2,508.62
  4. Step 4: Simplify right side
    7,189.18x = 27,043,806.00
  5. Step 5: Solve for x
    x = 27,043,806.00/7,189.18
  6. Step 6: Final answer
    x = 3,761.74

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1.5x scale

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.