Home / 5,742.94-8,618.28-2,456.80

Finding the Fourth Proportional to 5,742.94, 8,618.28 and 2,456.80

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Solution

The fourth proportional to 5,742.94, 8,618.28 and 2,456.80 is: 3,686.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,742.94 : 8,618.28 = 2,456.80 : x
  2. Step 2: Convert to fraction form
    5,742.94/8,618.28 = 2,456.80/x
  3. Step 3: Cross multiply
    5,742.94x = 8,618.28 × 2,456.80
  4. Step 4: Simplify right side
    5,742.94x = 21,173,390.30
  5. Step 5: Solve for x
    x = 21,173,390.30/5,742.94
  6. Step 6: Final answer
    x = 3,686.86

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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.