Home / 1,893.18-2,839.78-1,161.45

Finding the Fourth Proportional to 1,893.18, 2,839.78 and 1,161.45

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Solution

The fourth proportional to 1,893.18, 2,839.78 and 1,161.45 is: 1,742.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893.18 : 2,839.78 = 1,161.45 : x
  2. Step 2: Convert to fraction form
    1,893.18/2,839.78 = 1,161.45/x
  3. Step 3: Cross multiply
    1,893.18x = 2,839.78 × 1,161.45
  4. Step 4: Simplify right side
    1,893.18x = 3,298,263.93
  5. Step 5: Solve for x
    x = 3,298,263.93/1,893.18
  6. Step 6: Final answer
    x = 1,742.18

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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.