Home / 3,385.42-5,077.56-1,306.39

Finding the Fourth Proportional to 3,385.42, 5,077.56 and 1,306.39

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Solution

The fourth proportional to 3,385.42, 5,077.56 and 1,306.39 is: 1,959.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.42 : 5,077.56 = 1,306.39 : x
  2. Step 2: Convert to fraction form
    3,385.42/5,077.56 = 1,306.39/x
  3. Step 3: Cross multiply
    3,385.42x = 5,077.56 × 1,306.39
  4. Step 4: Simplify right side
    3,385.42x = 6,633,273.61
  5. Step 5: Solve for x
    x = 6,633,273.61/3,385.42
  6. Step 6: Final answer
    x = 1,959.37

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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.