Home / 5,150.20-7,725.30-2,558.20

Finding the Fourth Proportional to 5,150.20, 7,725.30 and 2,558.20

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Solution

The fourth proportional to 5,150.20, 7,725.30 and 2,558.20 is: 3,837.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.20 : 7,725.30 = 2,558.20 : x
  2. Step 2: Convert to fraction form
    5,150.20/7,725.30 = 2,558.20/x
  3. Step 3: Cross multiply
    5,150.20x = 7,725.30 × 2,558.20
  4. Step 4: Simplify right side
    5,150.20x = 19,762,862.46
  5. Step 5: Solve for x
    x = 19,762,862.46/5,150.20
  6. Step 6: Final answer
    x = 3,837.30

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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.