Home / 2,819.60-3,891.08-2,353.04

Finding the Fourth Proportional to 2,819.60, 3,891.08 and 2,353.04

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Solution

The fourth proportional to 2,819.60, 3,891.08 and 2,353.04 is: 3,247.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.60 : 3,891.08 = 2,353.04 : x
  2. Step 2: Convert to fraction form
    2,819.60/3,891.08 = 2,353.04/x
  3. Step 3: Cross multiply
    2,819.60x = 3,891.08 × 2,353.04
  4. Step 4: Simplify right side
    2,819.60x = 9,155,866.88
  5. Step 5: Solve for x
    x = 9,155,866.88/2,819.60
  6. Step 6: Final answer
    x = 3,247.22

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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.