Home / 1,790.08-2,684.79-749.80

Finding the Fourth Proportional to 1,790.08, 2,684.79 and 749.80

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Solution

The fourth proportional to 1,790.08, 2,684.79 and 749.80 is: 1,124.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.08 : 2,684.79 = 749.80 : x
  2. Step 2: Convert to fraction form
    1,790.08/2,684.79 = 749.80/x
  3. Step 3: Cross multiply
    1,790.08x = 2,684.79 × 749.80
  4. Step 4: Simplify right side
    1,790.08x = 2,013,055.54
  5. Step 5: Solve for x
    x = 2,013,055.54/1,790.08
  6. Step 6: Final answer
    x = 1,124.56

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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.