Home / 5,229.20-7,844.76-1,719.40

Finding the Fourth Proportional to 5,229.20, 7,844.76 and 1,719.40

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Solution

The fourth proportional to 5,229.20, 7,844.76 and 1,719.40 is: 2,579.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.20 : 7,844.76 = 1,719.40 : x
  2. Step 2: Convert to fraction form
    5,229.20/7,844.76 = 1,719.40/x
  3. Step 3: Cross multiply
    5,229.20x = 7,844.76 × 1,719.40
  4. Step 4: Simplify right side
    5,229.20x = 13,488,271.75
  5. Step 5: Solve for x
    x = 13,488,271.75/5,229.20
  6. Step 6: Final answer
    x = 2,579.42

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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.