Home / 3,153.60-4,722.72-2,124.48

Finding the Fourth Proportional to 3,153.60, 4,722.72 and 2,124.48

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Solution

The fourth proportional to 3,153.60, 4,722.72 and 2,124.48 is: 3,181.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.60 : 4,722.72 = 2,124.48 : x
  2. Step 2: Convert to fraction form
    3,153.60/4,722.72 = 2,124.48/x
  3. Step 3: Cross multiply
    3,153.60x = 4,722.72 × 2,124.48
  4. Step 4: Simplify right side
    3,153.60x = 10,033,324.19
  5. Step 5: Solve for x
    x = 10,033,324.19/3,153.60
  6. Step 6: Final answer
    x = 3,181.55

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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.