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Finding the Fourth Proportional to 3,492.83, 4,819.98 and 1,920.91

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Solution

The fourth proportional to 3,492.83, 4,819.98 and 1,920.91 is: 2,650.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,492.83 : 4,819.98 = 1,920.91 : x
  2. Step 2: Convert to fraction form
    3,492.83/4,819.98 = 1,920.91/x
  3. Step 3: Cross multiply
    3,492.83x = 4,819.98 × 1,920.91
  4. Step 4: Simplify right side
    3,492.83x = 9,258,747.78
  5. Step 5: Solve for x
    x = 9,258,747.78/3,492.83
  6. Step 6: Final answer
    x = 2,650.79

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