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Finding the Fourth Proportional to 2,722.39, 3,756.90 and 1,480.39

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Solution

The fourth proportional to 2,722.39, 3,756.90 and 1,480.39 is: 2,042.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.39 : 3,756.90 = 1,480.39 : x
  2. Step 2: Convert to fraction form
    2,722.39/3,756.90 = 1,480.39/x
  3. Step 3: Cross multiply
    2,722.39x = 3,756.90 × 1,480.39
  4. Step 4: Simplify right side
    2,722.39x = 5,561,677.19
  5. Step 5: Solve for x
    x = 5,561,677.19/2,722.39
  6. Step 6: Final answer
    x = 2,042.94

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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.