Home / 5,212.16-7,192.56-3,116.96

Finding the Fourth Proportional to 5,212.16, 7,192.56 and 3,116.96

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Solution

The fourth proportional to 5,212.16, 7,192.56 and 3,116.96 is: 4,301.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.16 : 7,192.56 = 3,116.96 : x
  2. Step 2: Convert to fraction form
    5,212.16/7,192.56 = 3,116.96/x
  3. Step 3: Cross multiply
    5,212.16x = 7,192.56 × 3,116.96
  4. Step 4: Simplify right side
    5,212.16x = 22,418,921.82
  5. Step 5: Solve for x
    x = 22,418,921.82/5,212.16
  6. Step 6: Final answer
    x = 4,301.27

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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.