Home / 4,002.40-6,003.66-1,081.12

Finding the Fourth Proportional to 4,002.40, 6,003.66 and 1,081.12

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Solution

The fourth proportional to 4,002.40, 6,003.66 and 1,081.12 is: 1,621.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,002.40 : 6,003.66 = 1,081.12 : x
  2. Step 2: Convert to fraction form
    4,002.40/6,003.66 = 1,081.12/x
  3. Step 3: Cross multiply
    4,002.40x = 6,003.66 × 1,081.12
  4. Step 4: Simplify right side
    4,002.40x = 6,490,676.90
  5. Step 5: Solve for x
    x = 6,490,676.90/4,002.40
  6. Step 6: Final answer
    x = 1,621.70

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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.