Home / 3,515.40-4,849.00-2,769.05

Finding the Fourth Proportional to 3,515.40, 4,849.00 and 2,769.05

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Solution

The fourth proportional to 3,515.40, 4,849.00 and 2,769.05 is: 3,819.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.40 : 4,849.00 = 2,769.05 : x
  2. Step 2: Convert to fraction form
    3,515.40/4,849.00 = 2,769.05/x
  3. Step 3: Cross multiply
    3,515.40x = 4,849.00 × 2,769.05
  4. Step 4: Simplify right side
    3,515.40x = 13,427,128.65
  5. Step 5: Solve for x
    x = 13,427,128.65/3,515.40
  6. Step 6: Final answer
    x = 3,819.52

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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.