Home / 2,481.30-3,425.36-1,920.51

Finding the Fourth Proportional to 2,481.30, 3,425.36 and 1,920.51

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Solution

The fourth proportional to 2,481.30, 3,425.36 and 1,920.51 is: 2,651.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.30 : 3,425.36 = 1,920.51 : x
  2. Step 2: Convert to fraction form
    2,481.30/3,425.36 = 1,920.51/x
  3. Step 3: Cross multiply
    2,481.30x = 3,425.36 × 1,920.51
  4. Step 4: Simplify right side
    2,481.30x = 6,578,428.53
  5. Step 5: Solve for x
    x = 6,578,428.53/2,481.30
  6. Step 6: Final answer
    x = 2,651.20

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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.