Home / 5,719.20-8,580-1,823.92

Finding the Fourth Proportional to 5,719.20, 8,580 and 1,823.92

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Solution

The fourth proportional to 5,719.20, 8,580 and 1,823.92 is: 2,736.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,719.20 : 8,580 = 1,823.92 : x
  2. Step 2: Convert to fraction form
    5,719.20/8,580 = 1,823.92/x
  3. Step 3: Cross multiply
    5,719.20x = 8,580 × 1,823.92
  4. Step 4: Simplify right side
    5,719.20x = 15,649,233.60
  5. Step 5: Solve for x
    x = 15,649,233.60/5,719.20
  6. Step 6: Final answer
    x = 2,736.26

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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.