Home / 3,107.25-4,275.45-2,999.52

Finding the Fourth Proportional to 3,107.25, 4,275.45 and 2,999.52

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Solution

The fourth proportional to 3,107.25, 4,275.45 and 2,999.52 is: 4,127.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.25 : 4,275.45 = 2,999.52 : x
  2. Step 2: Convert to fraction form
    3,107.25/4,275.45 = 2,999.52/x
  3. Step 3: Cross multiply
    3,107.25x = 4,275.45 × 2,999.52
  4. Step 4: Simplify right side
    3,107.25x = 12,824,297.78
  5. Step 5: Solve for x
    x = 12,824,297.78/3,107.25
  6. Step 6: Final answer
    x = 4,127.22

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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.