Home / 7,719.30-11,579.76-2,454.57

Finding the Fourth Proportional to 7,719.30, 11,579.76 and 2,454.57

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Solution

The fourth proportional to 7,719.30, 11,579.76 and 2,454.57 is: 3,682.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.30 : 11,579.76 = 2,454.57 : x
  2. Step 2: Convert to fraction form
    7,719.30/11,579.76 = 2,454.57/x
  3. Step 3: Cross multiply
    7,719.30x = 11,579.76 × 2,454.57
  4. Step 4: Simplify right side
    7,719.30x = 28,423,331.50
  5. Step 5: Solve for x
    x = 28,423,331.50/7,719.30
  6. Step 6: Final answer
    x = 3,682.11

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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.