Home / 2,873.47-3,963.99-1,878.79

Finding the Fourth Proportional to 2,873.47, 3,963.99 and 1,878.79

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Solution

The fourth proportional to 2,873.47, 3,963.99 and 1,878.79 is: 2,591.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.47 : 3,963.99 = 1,878.79 : x
  2. Step 2: Convert to fraction form
    2,873.47/3,963.99 = 1,878.79/x
  3. Step 3: Cross multiply
    2,873.47x = 3,963.99 × 1,878.79
  4. Step 4: Simplify right side
    2,873.47x = 7,447,504.77
  5. Step 5: Solve for x
    x = 7,447,504.77/2,873.47
  6. Step 6: Final answer
    x = 2,591.82

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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.