Home / 2,755.39-4,134.11-1,275.33

Finding the Fourth Proportional to 2,755.39, 4,134.11 and 1,275.33

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Solution

The fourth proportional to 2,755.39, 4,134.11 and 1,275.33 is: 1,913.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.39 : 4,134.11 = 1,275.33 : x
  2. Step 2: Convert to fraction form
    2,755.39/4,134.11 = 1,275.33/x
  3. Step 3: Cross multiply
    2,755.39x = 4,134.11 × 1,275.33
  4. Step 4: Simplify right side
    2,755.39x = 5,272,368.58
  5. Step 5: Solve for x
    x = 5,272,368.58/2,755.39
  6. Step 6: Final answer
    x = 1,913.47

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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.