Home / 2,821.19-4,230.36-1,651.56

Finding the Fourth Proportional to 2,821.19, 4,230.36 and 1,651.56

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Solution

The fourth proportional to 2,821.19, 4,230.36 and 1,651.56 is: 2,476.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.19 : 4,230.36 = 1,651.56 : x
  2. Step 2: Convert to fraction form
    2,821.19/4,230.36 = 1,651.56/x
  3. Step 3: Cross multiply
    2,821.19x = 4,230.36 × 1,651.56
  4. Step 4: Simplify right side
    2,821.19x = 6,986,720.16
  5. Step 5: Solve for x
    x = 6,986,720.16/2,821.19
  6. Step 6: Final answer
    x = 2,476.51

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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.