Home / 5,456.40-8,184.60-2,823.90

Finding the Fourth Proportional to 5,456.40, 8,184.60 and 2,823.90

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Solution

The fourth proportional to 5,456.40, 8,184.60 and 2,823.90 is: 4,235.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.40 : 8,184.60 = 2,823.90 : x
  2. Step 2: Convert to fraction form
    5,456.40/8,184.60 = 2,823.90/x
  3. Step 3: Cross multiply
    5,456.40x = 8,184.60 × 2,823.90
  4. Step 4: Simplify right side
    5,456.40x = 23,112,491.94
  5. Step 5: Solve for x
    x = 23,112,491.94/5,456.40
  6. Step 6: Final answer
    x = 4,235.85

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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.