Home / 2,788.71-4,184.43-1,972.23

Finding the Fourth Proportional to 2,788.71, 4,184.43 and 1,972.23

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Solution

The fourth proportional to 2,788.71, 4,184.43 and 1,972.23 is: 2,959.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.71 : 4,184.43 = 1,972.23 : x
  2. Step 2: Convert to fraction form
    2,788.71/4,184.43 = 1,972.23/x
  3. Step 3: Cross multiply
    2,788.71x = 4,184.43 × 1,972.23
  4. Step 4: Simplify right side
    2,788.71x = 8,252,658.38
  5. Step 5: Solve for x
    x = 8,252,658.38/2,788.71
  6. Step 6: Final answer
    x = 2,959.31

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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.