Home / 4,220.27-6,330.21-1,447.19

Finding the Fourth Proportional to 4,220.27, 6,330.21 and 1,447.19

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Solution

The fourth proportional to 4,220.27, 6,330.21 and 1,447.19 is: 2,170.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.27 : 6,330.21 = 1,447.19 : x
  2. Step 2: Convert to fraction form
    4,220.27/6,330.21 = 1,447.19/x
  3. Step 3: Cross multiply
    4,220.27x = 6,330.21 × 1,447.19
  4. Step 4: Simplify right side
    4,220.27x = 9,161,016.61
  5. Step 5: Solve for x
    x = 9,161,016.61/4,220.27
  6. Step 6: Final answer
    x = 2,170.72

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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.