Home / 3,326.60-4,990.38-1,766.20

Finding the Fourth Proportional to 3,326.60, 4,990.38 and 1,766.20

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Solution

The fourth proportional to 3,326.60, 4,990.38 and 1,766.20 is: 2,649.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,326.60 : 4,990.38 = 1,766.20 : x
  2. Step 2: Convert to fraction form
    3,326.60/4,990.38 = 1,766.20/x
  3. Step 3: Cross multiply
    3,326.60x = 4,990.38 × 1,766.20
  4. Step 4: Simplify right side
    3,326.60x = 8,814,009.16
  5. Step 5: Solve for x
    x = 8,814,009.16/3,326.60
  6. Step 6: Final answer
    x = 2,649.56

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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.