Home / 5,419.01-8,121.86-3,080.98

Finding the Fourth Proportional to 5,419.01, 8,121.86 and 3,080.98

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Solution

The fourth proportional to 5,419.01, 8,121.86 and 3,080.98 is: 4,617.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.01 : 8,121.86 = 3,080.98 : x
  2. Step 2: Convert to fraction form
    5,419.01/8,121.86 = 3,080.98/x
  3. Step 3: Cross multiply
    5,419.01x = 8,121.86 × 3,080.98
  4. Step 4: Simplify right side
    5,419.01x = 25,023,247.61
  5. Step 5: Solve for x
    x = 25,023,247.61/5,419.01
  6. Step 6: Final answer
    x = 4,617.68

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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.