Home / 2,231.40-3,350.70-1,684.20

Finding the Fourth Proportional to 2,231.40, 3,350.70 and 1,684.20

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Solution

The fourth proportional to 2,231.40, 3,350.70 and 1,684.20 is: 2,529.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.40 : 3,350.70 = 1,684.20 : x
  2. Step 2: Convert to fraction form
    2,231.40/3,350.70 = 1,684.20/x
  3. Step 3: Cross multiply
    2,231.40x = 3,350.70 × 1,684.20
  4. Step 4: Simplify right side
    2,231.40x = 5,643,248.94
  5. Step 5: Solve for x
    x = 5,643,248.94/2,231.40
  6. Step 6: Final answer
    x = 2,529.02

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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.