Home / 2,806.72-4,205.76-1,651.20

Finding the Fourth Proportional to 2,806.72, 4,205.76 and 1,651.20

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Solution

The fourth proportional to 2,806.72, 4,205.76 and 1,651.20 is: 2,474.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.72 : 4,205.76 = 1,651.20 : x
  2. Step 2: Convert to fraction form
    2,806.72/4,205.76 = 1,651.20/x
  3. Step 3: Cross multiply
    2,806.72x = 4,205.76 × 1,651.20
  4. Step 4: Simplify right side
    2,806.72x = 6,944,550.91
  5. Step 5: Solve for x
    x = 6,944,550.91/2,806.72
  6. Step 6: Final answer
    x = 2,474.26

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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.