Home / 1,465.92-2,197.68-919.44

Finding the Fourth Proportional to 1,465.92, 2,197.68 and 919.44

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Solution

The fourth proportional to 1,465.92, 2,197.68 and 919.44 is: 1,378.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465.92 : 2,197.68 = 919.44 : x
  2. Step 2: Convert to fraction form
    1,465.92/2,197.68 = 919.44/x
  3. Step 3: Cross multiply
    1,465.92x = 2,197.68 × 919.44
  4. Step 4: Simplify right side
    1,465.92x = 2,020,634.90
  5. Step 5: Solve for x
    x = 2,020,634.90/1,465.92
  6. Step 6: Final answer
    x = 1,378.41

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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.