Home / 5,243.49-7,236.95-3,147.75

Finding the Fourth Proportional to 5,243.49, 7,236.95 and 3,147.75

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Solution

The fourth proportional to 5,243.49, 7,236.95 and 3,147.75 is: 4,344.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.49 : 7,236.95 = 3,147.75 : x
  2. Step 2: Convert to fraction form
    5,243.49/7,236.95 = 3,147.75/x
  3. Step 3: Cross multiply
    5,243.49x = 7,236.95 × 3,147.75
  4. Step 4: Simplify right side
    5,243.49x = 22,780,093.62
  5. Step 5: Solve for x
    x = 22,780,093.62/5,243.49
  6. Step 6: Final answer
    x = 4,344.45

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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.