Home / 3,742.22-5,168.40-2,912.96

Finding the Fourth Proportional to 3,742.22, 5,168.40 and 2,912.96

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Solution

The fourth proportional to 3,742.22, 5,168.40 and 2,912.96 is: 4,023.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.22 : 5,168.40 = 2,912.96 : x
  2. Step 2: Convert to fraction form
    3,742.22/5,168.40 = 2,912.96/x
  3. Step 3: Cross multiply
    3,742.22x = 5,168.40 × 2,912.96
  4. Step 4: Simplify right side
    3,742.22x = 15,055,342.46
  5. Step 5: Solve for x
    x = 15,055,342.46/3,742.22
  6. Step 6: Final answer
    x = 4,023.10

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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.