Home / 2,865.66-3,954.30-1,686.60

Finding the Fourth Proportional to 2,865.66, 3,954.30 and 1,686.60

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Solution

The fourth proportional to 2,865.66, 3,954.30 and 1,686.60 is: 2,327.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.66 : 3,954.30 = 1,686.60 : x
  2. Step 2: Convert to fraction form
    2,865.66/3,954.30 = 1,686.60/x
  3. Step 3: Cross multiply
    2,865.66x = 3,954.30 × 1,686.60
  4. Step 4: Simplify right side
    2,865.66x = 6,669,322.38
  5. Step 5: Solve for x
    x = 6,669,322.38/2,865.66
  6. Step 6: Final answer
    x = 2,327.33

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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.