Home / 2,755.29-3,802.92-2,312.42

Finding the Fourth Proportional to 2,755.29, 3,802.92 and 2,312.42

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Solution

The fourth proportional to 2,755.29, 3,802.92 and 2,312.42 is: 3,191.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.29 : 3,802.92 = 2,312.42 : x
  2. Step 2: Convert to fraction form
    2,755.29/3,802.92 = 2,312.42/x
  3. Step 3: Cross multiply
    2,755.29x = 3,802.92 × 2,312.42
  4. Step 4: Simplify right side
    2,755.29x = 8,793,948.27
  5. Step 5: Solve for x
    x = 8,793,948.27/2,755.29
  6. Step 6: Final answer
    x = 3,191.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.