Home / 2,689.11-4,033.64-1,046.81

Finding the Fourth Proportional to 2,689.11, 4,033.64 and 1,046.81

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Solution

The fourth proportional to 2,689.11, 4,033.64 and 1,046.81 is: 1,570.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.11 : 4,033.64 = 1,046.81 : x
  2. Step 2: Convert to fraction form
    2,689.11/4,033.64 = 1,046.81/x
  3. Step 3: Cross multiply
    2,689.11x = 4,033.64 × 1,046.81
  4. Step 4: Simplify right side
    2,689.11x = 4,222,429.29
  5. Step 5: Solve for x
    x = 4,222,429.29/2,689.11
  6. Step 6: Final answer
    x = 1,570.20

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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.