Home / 5,239.72-7,862.28-2,320.08

Finding the Fourth Proportional to 5,239.72, 7,862.28 and 2,320.08

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Solution

The fourth proportional to 5,239.72, 7,862.28 and 2,320.08 is: 3,481.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.72 : 7,862.28 = 2,320.08 : x
  2. Step 2: Convert to fraction form
    5,239.72/7,862.28 = 2,320.08/x
  3. Step 3: Cross multiply
    5,239.72x = 7,862.28 × 2,320.08
  4. Step 4: Simplify right side
    5,239.72x = 18,241,118.58
  5. Step 5: Solve for x
    x = 18,241,118.58/5,239.72
  6. Step 6: Final answer
    x = 3,481.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.