Home / 5,491.30-8,240.55-3,151.30

Finding the Fourth Proportional to 5,491.30, 8,240.55 and 3,151.30

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Solution

The fourth proportional to 5,491.30, 8,240.55 and 3,151.30 is: 4,729.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.30 : 8,240.55 = 3,151.30 : x
  2. Step 2: Convert to fraction form
    5,491.30/8,240.55 = 3,151.30/x
  3. Step 3: Cross multiply
    5,491.30x = 8,240.55 × 3,151.30
  4. Step 4: Simplify right side
    5,491.30x = 25,968,445.22
  5. Step 5: Solve for x
    x = 25,968,445.22/5,491.30
  6. Step 6: Final answer
    x = 4,729.02

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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.