Home / 1,948.95-2,689.92-1,163.43

Finding the Fourth Proportional to 1,948.95, 2,689.92 and 1,163.43

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Solution

The fourth proportional to 1,948.95, 2,689.92 and 1,163.43 is: 1,605.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.95 : 2,689.92 = 1,163.43 : x
  2. Step 2: Convert to fraction form
    1,948.95/2,689.92 = 1,163.43/x
  3. Step 3: Cross multiply
    1,948.95x = 2,689.92 × 1,163.43
  4. Step 4: Simplify right side
    1,948.95x = 3,129,533.63
  5. Step 5: Solve for x
    x = 3,129,533.63/1,948.95
  6. Step 6: Final answer
    x = 1,605.75

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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.