Home / 3,725.55-5,139.77-2,308.77

Finding the Fourth Proportional to 3,725.55, 5,139.77 and 2,308.77

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Solution

The fourth proportional to 3,725.55, 5,139.77 and 2,308.77 is: 3,185.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.55 : 5,139.77 = 2,308.77 : x
  2. Step 2: Convert to fraction form
    3,725.55/5,139.77 = 2,308.77/x
  3. Step 3: Cross multiply
    3,725.55x = 5,139.77 × 2,308.77
  4. Step 4: Simplify right side
    3,725.55x = 11,866,535.24
  5. Step 5: Solve for x
    x = 11,866,535.24/3,725.55
  6. Step 6: Final answer
    x = 3,185.18

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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.