Home / 4,123.55-5,687.91-2,707.31

Finding the Fourth Proportional to 4,123.55, 5,687.91 and 2,707.31

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Solution

The fourth proportional to 4,123.55, 5,687.91 and 2,707.31 is: 3,734.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,123.55 : 5,687.91 = 2,707.31 : x
  2. Step 2: Convert to fraction form
    4,123.55/5,687.91 = 2,707.31/x
  3. Step 3: Cross multiply
    4,123.55x = 5,687.91 × 2,707.31
  4. Step 4: Simplify right side
    4,123.55x = 15,398,907.18
  5. Step 5: Solve for x
    x = 15,398,907.18/4,123.55
  6. Step 6: Final answer
    x = 3,734.39

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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.