Home / 2,215.49-3,324.02-1,392.84

Finding the Fourth Proportional to 2,215.49, 3,324.02 and 1,392.84

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Solution

The fourth proportional to 2,215.49, 3,324.02 and 1,392.84 is: 2,089.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.49 : 3,324.02 = 1,392.84 : x
  2. Step 2: Convert to fraction form
    2,215.49/3,324.02 = 1,392.84/x
  3. Step 3: Cross multiply
    2,215.49x = 3,324.02 × 1,392.84
  4. Step 4: Simplify right side
    2,215.49x = 4,629,821.05
  5. Step 5: Solve for x
    x = 4,629,821.05/2,215.49
  6. Step 6: Final answer
    x = 2,089.76

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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.