Home / 1,790.05-2,684.19-749.74

Finding the Fourth Proportional to 1,790.05, 2,684.19 and 749.74

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Solution

The fourth proportional to 1,790.05, 2,684.19 and 749.74 is: 1,124.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.05 : 2,684.19 = 749.74 : x
  2. Step 2: Convert to fraction form
    1,790.05/2,684.19 = 749.74/x
  3. Step 3: Cross multiply
    1,790.05x = 2,684.19 × 749.74
  4. Step 4: Simplify right side
    1,790.05x = 2,012,444.61
  5. Step 5: Solve for x
    x = 2,012,444.61/1,790.05
  6. Step 6: Final answer
    x = 1,124.24

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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.