Home / 3,319.68-4,979.53-1,839.81

Finding the Fourth Proportional to 3,319.68, 4,979.53 and 1,839.81

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Solution

The fourth proportional to 3,319.68, 4,979.53 and 1,839.81 is: 2,759.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.68 : 4,979.53 = 1,839.81 : x
  2. Step 2: Convert to fraction form
    3,319.68/4,979.53 = 1,839.81/x
  3. Step 3: Cross multiply
    3,319.68x = 4,979.53 × 1,839.81
  4. Step 4: Simplify right side
    3,319.68x = 9,161,399.71
  5. Step 5: Solve for x
    x = 9,161,399.71/3,319.68
  6. Step 6: Final answer
    x = 2,759.72

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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.