Home / 4,001.20-6,001.26-1,079.68

Finding the Fourth Proportional to 4,001.20, 6,001.26 and 1,079.68

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Solution

The fourth proportional to 4,001.20, 6,001.26 and 1,079.68 is: 1,619.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,001.20 : 6,001.26 = 1,079.68 : x
  2. Step 2: Convert to fraction form
    4,001.20/6,001.26 = 1,079.68/x
  3. Step 3: Cross multiply
    4,001.20x = 6,001.26 × 1,079.68
  4. Step 4: Simplify right side
    4,001.20x = 6,479,440.40
  5. Step 5: Solve for x
    x = 6,479,440.40/4,001.20
  6. Step 6: Final answer
    x = 1,619.37

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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.