Home / 2,782.33-3,838.51-1,787.45

Finding the Fourth Proportional to 2,782.33, 3,838.51 and 1,787.45

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Solution

The fourth proportional to 2,782.33, 3,838.51 and 1,787.45 is: 2,465.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.33 : 3,838.51 = 1,787.45 : x
  2. Step 2: Convert to fraction form
    2,782.33/3,838.51 = 1,787.45/x
  3. Step 3: Cross multiply
    2,782.33x = 3,838.51 × 1,787.45
  4. Step 4: Simplify right side
    2,782.33x = 6,861,144.70
  5. Step 5: Solve for x
    x = 6,861,144.70/2,782.33
  6. Step 6: Final answer
    x = 2,465.97

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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.