Home / 6,511.80-9,767.61-1,581.48

Finding the Fourth Proportional to 6,511.80, 9,767.61 and 1,581.48

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Solution

The fourth proportional to 6,511.80, 9,767.61 and 1,581.48 is: 2,372.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.80 : 9,767.61 = 1,581.48 : x
  2. Step 2: Convert to fraction form
    6,511.80/9,767.61 = 1,581.48/x
  3. Step 3: Cross multiply
    6,511.80x = 9,767.61 × 1,581.48
  4. Step 4: Simplify right side
    6,511.80x = 15,447,279.86
  5. Step 5: Solve for x
    x = 15,447,279.86/6,511.80
  6. Step 6: Final answer
    x = 2,372.20

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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.