Home / 3,393.40-4,675.86-2,399.80

Finding the Fourth Proportional to 3,393.40, 4,675.86 and 2,399.80

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Solution

The fourth proportional to 3,393.40, 4,675.86 and 2,399.80 is: 3,306.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.40 : 4,675.86 = 2,399.80 : x
  2. Step 2: Convert to fraction form
    3,393.40/4,675.86 = 2,399.80/x
  3. Step 3: Cross multiply
    3,393.40x = 4,675.86 × 2,399.80
  4. Step 4: Simplify right side
    3,393.40x = 11,221,128.83
  5. Step 5: Solve for x
    x = 11,221,128.83/3,393.40
  6. Step 6: Final answer
    x = 3,306.75

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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.