Home / 5,243.80-7,236.12-3,149.08

Finding the Fourth Proportional to 5,243.80, 7,236.12 and 3,149.08

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Solution

The fourth proportional to 5,243.80, 7,236.12 and 3,149.08 is: 4,345.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.80 : 7,236.12 = 3,149.08 : x
  2. Step 2: Convert to fraction form
    5,243.80/7,236.12 = 3,149.08/x
  3. Step 3: Cross multiply
    5,243.80x = 7,236.12 × 3,149.08
  4. Step 4: Simplify right side
    5,243.80x = 22,787,120.77
  5. Step 5: Solve for x
    x = 22,787,120.77/5,243.80
  6. Step 6: Final answer
    x = 4,345.54

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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.