Home / 3,239.26-4,854.90-1,921.70

Finding the Fourth Proportional to 3,239.26, 4,854.90 and 1,921.70

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Solution

The fourth proportional to 3,239.26, 4,854.90 and 1,921.70 is: 2,880.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.26 : 4,854.90 = 1,921.70 : x
  2. Step 2: Convert to fraction form
    3,239.26/4,854.90 = 1,921.70/x
  3. Step 3: Cross multiply
    3,239.26x = 4,854.90 × 1,921.70
  4. Step 4: Simplify right side
    3,239.26x = 9,329,661.33
  5. Step 5: Solve for x
    x = 9,329,661.33/3,239.26
  6. Step 6: Final answer
    x = 2,880.18

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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.