Home / 4,129.71-5,701.77-2,805.36

Finding the Fourth Proportional to 4,129.71, 5,701.77 and 2,805.36

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Solution

The fourth proportional to 4,129.71, 5,701.77 and 2,805.36 is: 3,873.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.71 : 5,701.77 = 2,805.36 : x
  2. Step 2: Convert to fraction form
    4,129.71/5,701.77 = 2,805.36/x
  3. Step 3: Cross multiply
    4,129.71x = 5,701.77 × 2,805.36
  4. Step 4: Simplify right side
    4,129.71x = 15,995,517.49
  5. Step 5: Solve for x
    x = 15,995,517.49/4,129.71
  6. Step 6: Final answer
    x = 3,873.28

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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.