Home / 2,787.48-3,846.29-1,668.27

Finding the Fourth Proportional to 2,787.48, 3,846.29 and 1,668.27

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Solution

The fourth proportional to 2,787.48, 3,846.29 and 1,668.27 is: 2,301.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.48 : 3,846.29 = 1,668.27 : x
  2. Step 2: Convert to fraction form
    2,787.48/3,846.29 = 1,668.27/x
  3. Step 3: Cross multiply
    2,787.48x = 3,846.29 × 1,668.27
  4. Step 4: Simplify right side
    2,787.48x = 6,416,641.88
  5. Step 5: Solve for x
    x = 6,416,641.88/2,787.48
  6. Step 6: Final answer
    x = 2,301.95

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1.5x scale

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.