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Finding the Fourth Proportional to 3,479.92, 4,804.68 and 2,819.68

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Solution

The fourth proportional to 3,479.92, 4,804.68 and 2,819.68 is: 3,893.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.92 : 4,804.68 = 2,819.68 : x
  2. Step 2: Convert to fraction form
    3,479.92/4,804.68 = 2,819.68/x
  3. Step 3: Cross multiply
    3,479.92x = 4,804.68 × 2,819.68
  4. Step 4: Simplify right side
    3,479.92x = 13,547,660.10
  5. Step 5: Solve for x
    x = 13,547,660.10/3,479.92
  6. Step 6: Final answer
    x = 3,893.10

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1.5x scale

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.