Home / 3,633.96-5,451.90-1,785

Finding the Fourth Proportional to 3,633.96, 5,451.90 and 1,785

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Solution

The fourth proportional to 3,633.96, 5,451.90 and 1,785 is: 2,677.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,633.96 : 5,451.90 = 1,785 : x
  2. Step 2: Convert to fraction form
    3,633.96/5,451.90 = 1,785/x
  3. Step 3: Cross multiply
    3,633.96x = 5,451.90 × 1,785
  4. Step 4: Simplify right side
    3,633.96x = 9,731,641.50
  5. Step 5: Solve for x
    x = 9,731,641.50/3,633.96
  6. Step 6: Final answer
    x = 2,677.97

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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.