Home / 2,862.39-3,965.43-2,794.35

Finding the Fourth Proportional to 2,862.39, 3,965.43 and 2,794.35

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Solution

The fourth proportional to 2,862.39, 3,965.43 and 2,794.35 is: 3,871.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.39 : 3,965.43 = 2,794.35 : x
  2. Step 2: Convert to fraction form
    2,862.39/3,965.43 = 2,794.35/x
  3. Step 3: Cross multiply
    2,862.39x = 3,965.43 × 2,794.35
  4. Step 4: Simplify right side
    2,862.39x = 11,080,799.32
  5. Step 5: Solve for x
    x = 11,080,799.32/2,862.39
  6. Step 6: Final answer
    x = 3,871.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.