Home / 2,766.82-3,816.87-1,587.58

Finding the Fourth Proportional to 2,766.82, 3,816.87 and 1,587.58

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Solution

The fourth proportional to 2,766.82, 3,816.87 and 1,587.58 is: 2,190.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.82 : 3,816.87 = 1,587.58 : x
  2. Step 2: Convert to fraction form
    2,766.82/3,816.87 = 1,587.58/x
  3. Step 3: Cross multiply
    2,766.82x = 3,816.87 × 1,587.58
  4. Step 4: Simplify right side
    2,766.82x = 6,059,586.47
  5. Step 5: Solve for x
    x = 6,059,586.47/2,766.82
  6. Step 6: Final answer
    x = 2,190.09

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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.