Home / 2,789.30-4,184.64-1,969.18

Finding the Fourth Proportional to 2,789.30, 4,184.64 and 1,969.18

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Solution

The fourth proportional to 2,789.30, 4,184.64 and 1,969.18 is: 2,954.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.30 : 4,184.64 = 1,969.18 : x
  2. Step 2: Convert to fraction form
    2,789.30/4,184.64 = 1,969.18/x
  3. Step 3: Cross multiply
    2,789.30x = 4,184.64 × 1,969.18
  4. Step 4: Simplify right side
    2,789.30x = 8,240,309.40
  5. Step 5: Solve for x
    x = 8,240,309.40/2,789.30
  6. Step 6: Final answer
    x = 2,954.26

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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.