Home / 5,812.48-8,724.20-2,118.28

Finding the Fourth Proportional to 5,812.48, 8,724.20 and 2,118.28

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Solution

The fourth proportional to 5,812.48, 8,724.20 and 2,118.28 is: 3,179.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,812.48 : 8,724.20 = 2,118.28 : x
  2. Step 2: Convert to fraction form
    5,812.48/8,724.20 = 2,118.28/x
  3. Step 3: Cross multiply
    5,812.48x = 8,724.20 × 2,118.28
  4. Step 4: Simplify right side
    5,812.48x = 18,480,298.38
  5. Step 5: Solve for x
    x = 18,480,298.38/5,812.48
  6. Step 6: Final answer
    x = 3,179.42

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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.