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Finding the Fourth Proportional to 5,246.24, 7,239.48 and 2,888.38

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Solution

The fourth proportional to 5,246.24, 7,239.48 and 2,888.38 is: 3,985.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,246.24 : 7,239.48 = 2,888.38 : x
  2. Step 2: Convert to fraction form
    5,246.24/7,239.48 = 2,888.38/x
  3. Step 3: Cross multiply
    5,246.24x = 7,239.48 × 2,888.38
  4. Step 4: Simplify right side
    5,246.24x = 20,910,326.74
  5. Step 5: Solve for x
    x = 20,910,326.74/5,246.24
  6. Step 6: Final answer
    x = 3,985.78

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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.