Home / 5,229.18-7,836.40-2,890.25

Finding the Fourth Proportional to 5,229.18, 7,836.40 and 2,890.25

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Solution

The fourth proportional to 5,229.18, 7,836.40 and 2,890.25 is: 4,331.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.18 : 7,836.40 = 2,890.25 : x
  2. Step 2: Convert to fraction form
    5,229.18/7,836.40 = 2,890.25/x
  3. Step 3: Cross multiply
    5,229.18x = 7,836.40 × 2,890.25
  4. Step 4: Simplify right side
    5,229.18x = 22,649,155.10
  5. Step 5: Solve for x
    x = 22,649,155.10/5,229.18
  6. Step 6: Final answer
    x = 4,331.30

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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.