Home / 5,124.83-7,687.22-1,427.06

Finding the Fourth Proportional to 5,124.83, 7,687.22 and 1,427.06

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Solution

The fourth proportional to 5,124.83, 7,687.22 and 1,427.06 is: 2,140.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.83 : 7,687.22 = 1,427.06 : x
  2. Step 2: Convert to fraction form
    5,124.83/7,687.22 = 1,427.06/x
  3. Step 3: Cross multiply
    5,124.83x = 7,687.22 × 1,427.06
  4. Step 4: Simplify right side
    5,124.83x = 10,970,078.60
  5. Step 5: Solve for x
    x = 10,970,078.60/5,124.83
  6. Step 6: Final answer
    x = 2,140.58

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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.