Home / 2,629.71-3,946.08-1,069.43

Finding the Fourth Proportional to 2,629.71, 3,946.08 and 1,069.43

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Solution

The fourth proportional to 2,629.71, 3,946.08 and 1,069.43 is: 1,604.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.71 : 3,946.08 = 1,069.43 : x
  2. Step 2: Convert to fraction form
    2,629.71/3,946.08 = 1,069.43/x
  3. Step 3: Cross multiply
    2,629.71x = 3,946.08 × 1,069.43
  4. Step 4: Simplify right side
    2,629.71x = 4,220,051.40
  5. Step 5: Solve for x
    x = 4,220,051.40/2,629.71
  6. Step 6: Final answer
    x = 1,604.76

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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.