Home / 6,519.28-9,779.10-2,819.20

Finding the Fourth Proportional to 6,519.28, 9,779.10 and 2,819.20

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Solution

The fourth proportional to 6,519.28, 9,779.10 and 2,819.20 is: 4,228.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,519.28 : 9,779.10 = 2,819.20 : x
  2. Step 2: Convert to fraction form
    6,519.28/9,779.10 = 2,819.20/x
  3. Step 3: Cross multiply
    6,519.28x = 9,779.10 × 2,819.20
  4. Step 4: Simplify right side
    6,519.28x = 27,569,238.72
  5. Step 5: Solve for x
    x = 27,569,238.72/6,519.28
  6. Step 6: Final answer
    x = 4,228.88

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1.5x scale

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.