Home / 3,392.40-4,674.48-2,398.80

Finding the Fourth Proportional to 3,392.40, 4,674.48 and 2,398.80

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Solution

The fourth proportional to 3,392.40, 4,674.48 and 2,398.80 is: 3,305.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.40 : 4,674.48 = 2,398.80 : x
  2. Step 2: Convert to fraction form
    3,392.40/4,674.48 = 2,398.80/x
  3. Step 3: Cross multiply
    3,392.40x = 4,674.48 × 2,398.80
  4. Step 4: Simplify right side
    3,392.40x = 11,213,142.62
  5. Step 5: Solve for x
    x = 11,213,142.62/3,392.40
  6. Step 6: Final answer
    x = 3,305.37

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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.