Home / 5,470.78-8,208.57-2,873.11

Finding the Fourth Proportional to 5,470.78, 8,208.57 and 2,873.11

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Solution

The fourth proportional to 5,470.78, 8,208.57 and 2,873.11 is: 4,310.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.78 : 8,208.57 = 2,873.11 : x
  2. Step 2: Convert to fraction form
    5,470.78/8,208.57 = 2,873.11/x
  3. Step 3: Cross multiply
    5,470.78x = 8,208.57 × 2,873.11
  4. Step 4: Simplify right side
    5,470.78x = 23,584,124.55
  5. Step 5: Solve for x
    x = 23,584,124.55/5,470.78
  6. Step 6: Final answer
    x = 4,310.93

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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.