Home / 3,120.24-4,307.97-2,001.63

Finding the Fourth Proportional to 3,120.24, 4,307.97 and 2,001.63

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Solution

The fourth proportional to 3,120.24, 4,307.97 and 2,001.63 is: 2,763.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.24 : 4,307.97 = 2,001.63 : x
  2. Step 2: Convert to fraction form
    3,120.24/4,307.97 = 2,001.63/x
  3. Step 3: Cross multiply
    3,120.24x = 4,307.97 × 2,001.63
  4. Step 4: Simplify right side
    3,120.24x = 8,622,961.99
  5. Step 5: Solve for x
    x = 8,622,961.99/3,120.24
  6. Step 6: Final answer
    x = 2,763.56

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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.