Home / 5,257.16-7,254.78-2,867.15

Finding the Fourth Proportional to 5,257.16, 7,254.78 and 2,867.15

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Solution

The fourth proportional to 5,257.16, 7,254.78 and 2,867.15 is: 3,956.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,257.16 : 7,254.78 = 2,867.15 : x
  2. Step 2: Convert to fraction form
    5,257.16/7,254.78 = 2,867.15/x
  3. Step 3: Cross multiply
    5,257.16x = 7,254.78 × 2,867.15
  4. Step 4: Simplify right side
    5,257.16x = 20,800,506.20
  5. Step 5: Solve for x
    x = 20,800,506.20/5,257.16
  6. Step 6: Final answer
    x = 3,956.61

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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.