Home / 3,449.16-5,139.48-3,281.79

Finding the Fourth Proportional to 3,449.16, 5,139.48 and 3,281.79

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Solution

The fourth proportional to 3,449.16, 5,139.48 and 3,281.79 is: 4,890.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.16 : 5,139.48 = 3,281.79 : x
  2. Step 2: Convert to fraction form
    3,449.16/5,139.48 = 3,281.79/x
  3. Step 3: Cross multiply
    3,449.16x = 5,139.48 × 3,281.79
  4. Step 4: Simplify right side
    3,449.16x = 16,866,694.07
  5. Step 5: Solve for x
    x = 16,866,694.07/3,449.16
  6. Step 6: Final answer
    x = 4,890.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.