Home / 3,490.40-5,230.20-2,334.80

Finding the Fourth Proportional to 3,490.40, 5,230.20 and 2,334.80

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Solution

The fourth proportional to 3,490.40, 5,230.20 and 2,334.80 is: 3,498.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.40 : 5,230.20 = 2,334.80 : x
  2. Step 2: Convert to fraction form
    3,490.40/5,230.20 = 2,334.80/x
  3. Step 3: Cross multiply
    3,490.40x = 5,230.20 × 2,334.80
  4. Step 4: Simplify right side
    3,490.40x = 12,211,470.96
  5. Step 5: Solve for x
    x = 12,211,470.96/3,490.40
  6. Step 6: Final answer
    x = 3,498.59

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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.