Home / 2,766.71-3,815.96-1,927.41

Finding the Fourth Proportional to 2,766.71, 3,815.96 and 1,927.41

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Solution

The fourth proportional to 2,766.71, 3,815.96 and 1,927.41 is: 2,658.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.71 : 3,815.96 = 1,927.41 : x
  2. Step 2: Convert to fraction form
    2,766.71/3,815.96 = 1,927.41/x
  3. Step 3: Cross multiply
    2,766.71x = 3,815.96 × 1,927.41
  4. Step 4: Simplify right side
    2,766.71x = 7,354,909.83
  5. Step 5: Solve for x
    x = 7,354,909.83/2,766.71
  6. Step 6: Final answer
    x = 2,658.36

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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.