Home / 2,039.95-3,058.55-1,218.80

Finding the Fourth Proportional to 2,039.95, 3,058.55 and 1,218.80

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Solution

The fourth proportional to 2,039.95, 3,058.55 and 1,218.80 is: 1,827.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.95 : 3,058.55 = 1,218.80 : x
  2. Step 2: Convert to fraction form
    2,039.95/3,058.55 = 1,218.80/x
  3. Step 3: Cross multiply
    2,039.95x = 3,058.55 × 1,218.80
  4. Step 4: Simplify right side
    2,039.95x = 3,727,760.74
  5. Step 5: Solve for x
    x = 3,727,760.74/2,039.95
  6. Step 6: Final answer
    x = 1,827.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.