Home / 7,491.12-11,236.68-2,560.80

Finding the Fourth Proportional to 7,491.12, 11,236.68 and 2,560.80

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Solution

The fourth proportional to 7,491.12, 11,236.68 and 2,560.80 is: 3,841.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,491.12 : 11,236.68 = 2,560.80 : x
  2. Step 2: Convert to fraction form
    7,491.12/11,236.68 = 2,560.80/x
  3. Step 3: Cross multiply
    7,491.12x = 11,236.68 × 2,560.80
  4. Step 4: Simplify right side
    7,491.12x = 28,774,890.14
  5. Step 5: Solve for x
    x = 28,774,890.14/7,491.12
  6. Step 6: Final answer
    x = 3,841.20

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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.