Home / 4,079.28-6,119.64-1,306.44

Finding the Fourth Proportional to 4,079.28, 6,119.64 and 1,306.44

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Solution

The fourth proportional to 4,079.28, 6,119.64 and 1,306.44 is: 1,959.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.28 : 6,119.64 = 1,306.44 : x
  2. Step 2: Convert to fraction form
    4,079.28/6,119.64 = 1,306.44/x
  3. Step 3: Cross multiply
    4,079.28x = 6,119.64 × 1,306.44
  4. Step 4: Simplify right side
    4,079.28x = 7,994,942.48
  5. Step 5: Solve for x
    x = 7,994,942.48/4,079.28
  6. Step 6: Final answer
    x = 1,959.89

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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.