Home / 3,157.16-4,358.74-2,806.88

Finding the Fourth Proportional to 3,157.16, 4,358.74 and 2,806.88

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Solution

The fourth proportional to 3,157.16, 4,358.74 and 2,806.88 is: 3,875.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.16 : 4,358.74 = 2,806.88 : x
  2. Step 2: Convert to fraction form
    3,157.16/4,358.74 = 2,806.88/x
  3. Step 3: Cross multiply
    3,157.16x = 4,358.74 × 2,806.88
  4. Step 4: Simplify right side
    3,157.16x = 12,234,447.11
  5. Step 5: Solve for x
    x = 12,234,447.11/3,157.16
  6. Step 6: Final answer
    x = 3,875.15

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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.