Home / 3,139.26-4,708.65-2,653.26

Finding the Fourth Proportional to 3,139.26, 4,708.65 and 2,653.26

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Solution

The fourth proportional to 3,139.26, 4,708.65 and 2,653.26 is: 3,979.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.26 : 4,708.65 = 2,653.26 : x
  2. Step 2: Convert to fraction form
    3,139.26/4,708.65 = 2,653.26/x
  3. Step 3: Cross multiply
    3,139.26x = 4,708.65 × 2,653.26
  4. Step 4: Simplify right side
    3,139.26x = 12,493,272.70
  5. Step 5: Solve for x
    x = 12,493,272.70/3,139.26
  6. Step 6: Final answer
    x = 3,979.69

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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.