Home / 2,722.46-3,755.70-1,838.55

Finding the Fourth Proportional to 2,722.46, 3,755.70 and 1,838.55

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Solution

The fourth proportional to 2,722.46, 3,755.70 and 1,838.55 is: 2,536.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.46 : 3,755.70 = 1,838.55 : x
  2. Step 2: Convert to fraction form
    2,722.46/3,755.70 = 1,838.55/x
  3. Step 3: Cross multiply
    2,722.46x = 3,755.70 × 1,838.55
  4. Step 4: Simplify right side
    2,722.46x = 6,905,042.24
  5. Step 5: Solve for x
    x = 6,905,042.24/2,722.46
  6. Step 6: Final answer
    x = 2,536.33

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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.