Home / 1,787.85-2,695.18-1,668.92

Finding the Fourth Proportional to 1,787.85, 2,695.18 and 1,668.92

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Solution

The fourth proportional to 1,787.85, 2,695.18 and 1,668.92 is: 2,515.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.85 : 2,695.18 = 1,668.92 : x
  2. Step 2: Convert to fraction form
    1,787.85/2,695.18 = 1,668.92/x
  3. Step 3: Cross multiply
    1,787.85x = 2,695.18 × 1,668.92
  4. Step 4: Simplify right side
    1,787.85x = 4,498,022.16
  5. Step 5: Solve for x
    x = 4,498,022.16/1,787.85
  6. Step 6: Final answer
    x = 2,515.88

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.