Home / 3,039.68-4,192.13-1,977.06

Finding the Fourth Proportional to 3,039.68, 4,192.13 and 1,977.06

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Solution

The fourth proportional to 3,039.68, 4,192.13 and 1,977.06 is: 2,726.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039.68 : 4,192.13 = 1,977.06 : x
  2. Step 2: Convert to fraction form
    3,039.68/4,192.13 = 1,977.06/x
  3. Step 3: Cross multiply
    3,039.68x = 4,192.13 × 1,977.06
  4. Step 4: Simplify right side
    3,039.68x = 8,288,079.77
  5. Step 5: Solve for x
    x = 8,288,079.77/3,039.68
  6. Step 6: Final answer
    x = 2,726.63

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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.