Home / 1,904.38-2,855.96-1,124.76

Finding the Fourth Proportional to 1,904.38, 2,855.96 and 1,124.76

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Solution

The fourth proportional to 1,904.38, 2,855.96 and 1,124.76 is: 1,686.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,904.38 : 2,855.96 = 1,124.76 : x
  2. Step 2: Convert to fraction form
    1,904.38/2,855.96 = 1,124.76/x
  3. Step 3: Cross multiply
    1,904.38x = 2,855.96 × 1,124.76
  4. Step 4: Simplify right side
    1,904.38x = 3,212,269.57
  5. Step 5: Solve for x
    x = 3,212,269.57/1,904.38
  6. Step 6: Final answer
    x = 1,686.78

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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.