Home / 2,821.56-4,232.79-1,434.33

Finding the Fourth Proportional to 2,821.56, 4,232.79 and 1,434.33

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Solution

The fourth proportional to 2,821.56, 4,232.79 and 1,434.33 is: 2,151.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.56 : 4,232.79 = 1,434.33 : x
  2. Step 2: Convert to fraction form
    2,821.56/4,232.79 = 1,434.33/x
  3. Step 3: Cross multiply
    2,821.56x = 4,232.79 × 1,434.33
  4. Step 4: Simplify right side
    2,821.56x = 6,071,217.68
  5. Step 5: Solve for x
    x = 6,071,217.68/2,821.56
  6. Step 6: Final answer
    x = 2,151.72

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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.