Home / 1,949.52-2,690.38-1,163.42

Finding the Fourth Proportional to 1,949.52, 2,690.38 and 1,163.42

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Solution

The fourth proportional to 1,949.52, 2,690.38 and 1,163.42 is: 1,605.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.52 : 2,690.38 = 1,163.42 : x
  2. Step 2: Convert to fraction form
    1,949.52/2,690.38 = 1,163.42/x
  3. Step 3: Cross multiply
    1,949.52x = 2,690.38 × 1,163.42
  4. Step 4: Simplify right side
    1,949.52x = 3,130,041.90
  5. Step 5: Solve for x
    x = 3,130,041.90/1,949.52
  6. Step 6: Final answer
    x = 1,605.54

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1.5x scale

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.