Home / 5,349.56-7,381.44-2,991.72

Finding the Fourth Proportional to 5,349.56, 7,381.44 and 2,991.72

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Solution

The fourth proportional to 5,349.56, 7,381.44 and 2,991.72 is: 4,128.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,349.56 : 7,381.44 = 2,991.72 : x
  2. Step 2: Convert to fraction form
    5,349.56/7,381.44 = 2,991.72/x
  3. Step 3: Cross multiply
    5,349.56x = 7,381.44 × 2,991.72
  4. Step 4: Simplify right side
    5,349.56x = 22,083,201.68
  5. Step 5: Solve for x
    x = 22,083,201.68/5,349.56
  6. Step 6: Final answer
    x = 4,128.04

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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.