Home / 2,205.55-3,043.20-1,309.26

Finding the Fourth Proportional to 2,205.55, 3,043.20 and 1,309.26

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Solution

The fourth proportional to 2,205.55, 3,043.20 and 1,309.26 is: 1,806.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.55 : 3,043.20 = 1,309.26 : x
  2. Step 2: Convert to fraction form
    2,205.55/3,043.20 = 1,309.26/x
  3. Step 3: Cross multiply
    2,205.55x = 3,043.20 × 1,309.26
  4. Step 4: Simplify right side
    2,205.55x = 3,984,345.31
  5. Step 5: Solve for x
    x = 3,984,345.31/2,205.55
  6. Step 6: Final answer
    x = 1,806.51

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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.