Home / 3,492.60-4,819.78-1,920.66

Finding the Fourth Proportional to 3,492.60, 4,819.78 and 1,920.66

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Solution

The fourth proportional to 3,492.60, 4,819.78 and 1,920.66 is: 2,650.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,492.60 : 4,819.78 = 1,920.66 : x
  2. Step 2: Convert to fraction form
    3,492.60/4,819.78 = 1,920.66/x
  3. Step 3: Cross multiply
    3,492.60x = 4,819.78 × 1,920.66
  4. Step 4: Simplify right side
    3,492.60x = 9,257,158.65
  5. Step 5: Solve for x
    x = 9,257,158.65/3,492.60
  6. Step 6: Final answer
    x = 2,650.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.