Home / 5,225.82-7,212.14-2,988.02

Finding the Fourth Proportional to 5,225.82, 7,212.14 and 2,988.02

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Solution

The fourth proportional to 5,225.82, 7,212.14 and 2,988.02 is: 4,123.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,225.82 : 7,212.14 = 2,988.02 : x
  2. Step 2: Convert to fraction form
    5,225.82/7,212.14 = 2,988.02/x
  3. Step 3: Cross multiply
    5,225.82x = 7,212.14 × 2,988.02
  4. Step 4: Simplify right side
    5,225.82x = 21,550,032.86
  5. Step 5: Solve for x
    x = 21,550,032.86/5,225.82
  6. Step 6: Final answer
    x = 4,123.76

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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.