Home / 4,145.60-6,218.40-3,972.80

Finding the Fourth Proportional to 4,145.60, 6,218.40 and 3,972.80

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Solution

The fourth proportional to 4,145.60, 6,218.40 and 3,972.80 is: 5,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.60 : 6,218.40 = 3,972.80 : x
  2. Step 2: Convert to fraction form
    4,145.60/6,218.40 = 3,972.80/x
  3. Step 3: Cross multiply
    4,145.60x = 6,218.40 × 3,972.80
  4. Step 4: Simplify right side
    4,145.60x = 24,704,459.52
  5. Step 5: Solve for x
    x = 24,704,459.52/4,145.60
  6. Step 6: Final answer
    x = 5,959.20

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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.