Home / 5,211.78-7,192.19-2,973.53

Finding the Fourth Proportional to 5,211.78, 7,192.19 and 2,973.53

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Solution

The fourth proportional to 5,211.78, 7,192.19 and 2,973.53 is: 4,103.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.78 : 7,192.19 = 2,973.53 : x
  2. Step 2: Convert to fraction form
    5,211.78/7,192.19 = 2,973.53/x
  3. Step 3: Cross multiply
    5,211.78x = 7,192.19 × 2,973.53
  4. Step 4: Simplify right side
    5,211.78x = 21,386,141.90
  5. Step 5: Solve for x
    x = 21,386,141.90/5,211.78
  6. Step 6: Final answer
    x = 4,103.42

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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.