Home / 3,146.22-4,715.67-2,781.72

Finding the Fourth Proportional to 3,146.22, 4,715.67 and 2,781.72

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Solution

The fourth proportional to 3,146.22, 4,715.67 and 2,781.72 is: 4,169.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.22 : 4,715.67 = 2,781.72 : x
  2. Step 2: Convert to fraction form
    3,146.22/4,715.67 = 2,781.72/x
  3. Step 3: Cross multiply
    3,146.22x = 4,715.67 × 2,781.72
  4. Step 4: Simplify right side
    3,146.22x = 13,117,683.98
  5. Step 5: Solve for x
    x = 13,117,683.98/3,146.22
  6. Step 6: Final answer
    x = 4,169.35

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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.