Home / 5,254.44-7,247.92-3,128.56

Finding the Fourth Proportional to 5,254.44, 7,247.92 and 3,128.56

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Solution

The fourth proportional to 5,254.44, 7,247.92 and 3,128.56 is: 4,315.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,254.44 : 7,247.92 = 3,128.56 : x
  2. Step 2: Convert to fraction form
    5,254.44/7,247.92 = 3,128.56/x
  3. Step 3: Cross multiply
    5,254.44x = 7,247.92 × 3,128.56
  4. Step 4: Simplify right side
    5,254.44x = 22,675,552.60
  5. Step 5: Solve for x
    x = 22,675,552.60/5,254.44
  6. Step 6: Final answer
    x = 4,315.50

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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.