Home / 3,619.80-4,995.14-2,439

Finding the Fourth Proportional to 3,619.80, 4,995.14 and 2,439

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Solution

The fourth proportional to 3,619.80, 4,995.14 and 2,439 is: 3,365.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.80 : 4,995.14 = 2,439 : x
  2. Step 2: Convert to fraction form
    3,619.80/4,995.14 = 2,439/x
  3. Step 3: Cross multiply
    3,619.80x = 4,995.14 × 2,439
  4. Step 4: Simplify right side
    3,619.80x = 12,183,146.46
  5. Step 5: Solve for x
    x = 12,183,146.46/3,619.80
  6. Step 6: Final answer
    x = 3,365.70

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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.