Home / 1,519.92-2,280.15-654.84

Finding the Fourth Proportional to 1,519.92, 2,280.15 and 654.84

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Solution

The fourth proportional to 1,519.92, 2,280.15 and 654.84 is: 982.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.92 : 2,280.15 = 654.84 : x
  2. Step 2: Convert to fraction form
    1,519.92/2,280.15 = 654.84/x
  3. Step 3: Cross multiply
    1,519.92x = 2,280.15 × 654.84
  4. Step 4: Simplify right side
    1,519.92x = 1,493,133.43
  5. Step 5: Solve for x
    x = 1,493,133.43/1,519.92
  6. Step 6: Final answer
    x = 982.38

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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.