Home / 2,721.38-3,754.58-1,881.77

Finding the Fourth Proportional to 2,721.38, 3,754.58 and 1,881.77

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Solution

The fourth proportional to 2,721.38, 3,754.58 and 1,881.77 is: 2,596.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.38 : 3,754.58 = 1,881.77 : x
  2. Step 2: Convert to fraction form
    2,721.38/3,754.58 = 1,881.77/x
  3. Step 3: Cross multiply
    2,721.38x = 3,754.58 × 1,881.77
  4. Step 4: Simplify right side
    2,721.38x = 7,065,227.82
  5. Step 5: Solve for x
    x = 7,065,227.82/2,721.38
  6. Step 6: Final answer
    x = 2,596.20

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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.