Home / 5,390.56-7,440.12-3,152.44

Finding the Fourth Proportional to 5,390.56, 7,440.12 and 3,152.44

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Solution

The fourth proportional to 5,390.56, 7,440.12 and 3,152.44 is: 4,351.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.56 : 7,440.12 = 3,152.44 : x
  2. Step 2: Convert to fraction form
    5,390.56/7,440.12 = 3,152.44/x
  3. Step 3: Cross multiply
    5,390.56x = 7,440.12 × 3,152.44
  4. Step 4: Simplify right side
    5,390.56x = 23,454,531.89
  5. Step 5: Solve for x
    x = 23,454,531.89/5,390.56
  6. Step 6: Final answer
    x = 4,351.04

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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.