Home / 5,425.16-8,140.62-2,830.28

Finding the Fourth Proportional to 5,425.16, 8,140.62 and 2,830.28

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Solution

The fourth proportional to 5,425.16, 8,140.62 and 2,830.28 is: 4,246.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.16 : 8,140.62 = 2,830.28 : x
  2. Step 2: Convert to fraction form
    5,425.16/8,140.62 = 2,830.28/x
  3. Step 3: Cross multiply
    5,425.16x = 8,140.62 × 2,830.28
  4. Step 4: Simplify right side
    5,425.16x = 23,040,233.97
  5. Step 5: Solve for x
    x = 23,040,233.97/5,425.16
  6. Step 6: Final answer
    x = 4,246.92

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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.