Home / 2,660.24-3,989.76-1,684.96

Finding the Fourth Proportional to 2,660.24, 3,989.76 and 1,684.96

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Solution

The fourth proportional to 2,660.24, 3,989.76 and 1,684.96 is: 2,527.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660.24 : 3,989.76 = 1,684.96 : x
  2. Step 2: Convert to fraction form
    2,660.24/3,989.76 = 1,684.96/x
  3. Step 3: Cross multiply
    2,660.24x = 3,989.76 × 1,684.96
  4. Step 4: Simplify right side
    2,660.24x = 6,722,586.01
  5. Step 5: Solve for x
    x = 6,722,586.01/2,660.24
  6. Step 6: Final answer
    x = 2,527.06

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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.