Home / 3,246.80-4,866.60-1,686.20

Finding the Fourth Proportional to 3,246.80, 4,866.60 and 1,686.20

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Solution

The fourth proportional to 3,246.80, 4,866.60 and 1,686.20 is: 2,527.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,246.80 : 4,866.60 = 1,686.20 : x
  2. Step 2: Convert to fraction form
    3,246.80/4,866.60 = 1,686.20/x
  3. Step 3: Cross multiply
    3,246.80x = 4,866.60 × 1,686.20
  4. Step 4: Simplify right side
    3,246.80x = 8,206,060.92
  5. Step 5: Solve for x
    x = 8,206,060.92/3,246.80
  6. Step 6: Final answer
    x = 2,527.43

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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.