Home / 2,886.42-3,982.35-1,766.19

Finding the Fourth Proportional to 2,886.42, 3,982.35 and 1,766.19

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Solution

The fourth proportional to 2,886.42, 3,982.35 and 1,766.19 is: 2,436.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,886.42 : 3,982.35 = 1,766.19 : x
  2. Step 2: Convert to fraction form
    2,886.42/3,982.35 = 1,766.19/x
  3. Step 3: Cross multiply
    2,886.42x = 3,982.35 × 1,766.19
  4. Step 4: Simplify right side
    2,886.42x = 7,033,593.37
  5. Step 5: Solve for x
    x = 7,033,593.37/2,886.42
  6. Step 6: Final answer
    x = 2,436.79

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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.