Home / 2,659.12-3,986.50-2,311.64

Finding the Fourth Proportional to 2,659.12, 3,986.50 and 2,311.64

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Solution

The fourth proportional to 2,659.12, 3,986.50 and 2,311.64 is: 3,465.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659.12 : 3,986.50 = 2,311.64 : x
  2. Step 2: Convert to fraction form
    2,659.12/3,986.50 = 2,311.64/x
  3. Step 3: Cross multiply
    2,659.12x = 3,986.50 × 2,311.64
  4. Step 4: Simplify right side
    2,659.12x = 9,215,352.86
  5. Step 5: Solve for x
    x = 9,215,352.86/2,659.12
  6. Step 6: Final answer
    x = 3,465.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.