Home / 4,019.91-5,541.56-2,821.11

Finding the Fourth Proportional to 4,019.91, 5,541.56 and 2,821.11

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Solution

The fourth proportional to 4,019.91, 5,541.56 and 2,821.11 is: 3,888.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,019.91 : 5,541.56 = 2,821.11 : x
  2. Step 2: Convert to fraction form
    4,019.91/5,541.56 = 2,821.11/x
  3. Step 3: Cross multiply
    4,019.91x = 5,541.56 × 2,821.11
  4. Step 4: Simplify right side
    4,019.91x = 15,633,350.33
  5. Step 5: Solve for x
    x = 15,633,350.33/4,019.91
  6. Step 6: Final answer
    x = 3,888.98

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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.