Home / 1,949.60-2,690.22-1,163.52

Finding the Fourth Proportional to 1,949.60, 2,690.22 and 1,163.52

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Solution

The fourth proportional to 1,949.60, 2,690.22 and 1,163.52 is: 1,605.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.60 : 2,690.22 = 1,163.52 : x
  2. Step 2: Convert to fraction form
    1,949.60/2,690.22 = 1,163.52/x
  3. Step 3: Cross multiply
    1,949.60x = 2,690.22 × 1,163.52
  4. Step 4: Simplify right side
    1,949.60x = 3,130,124.77
  5. Step 5: Solve for x
    x = 3,130,124.77/1,949.60
  6. Step 6: Final answer
    x = 1,605.52

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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.