Home / 3,238.26-4,853.40-1,920.70

Finding the Fourth Proportional to 3,238.26, 4,853.40 and 1,920.70

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Solution

The fourth proportional to 3,238.26, 4,853.40 and 1,920.70 is: 2,878.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.26 : 4,853.40 = 1,920.70 : x
  2. Step 2: Convert to fraction form
    3,238.26/4,853.40 = 1,920.70/x
  3. Step 3: Cross multiply
    3,238.26x = 4,853.40 × 1,920.70
  4. Step 4: Simplify right side
    3,238.26x = 9,321,925.38
  5. Step 5: Solve for x
    x = 9,321,925.38/3,238.26
  6. Step 6: Final answer
    x = 2,878.68

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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.