Home / 3,161.19-4,742.07-1,927.98

Finding the Fourth Proportional to 3,161.19, 4,742.07 and 1,927.98

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Solution

The fourth proportional to 3,161.19, 4,742.07 and 1,927.98 is: 2,892.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.19 : 4,742.07 = 1,927.98 : x
  2. Step 2: Convert to fraction form
    3,161.19/4,742.07 = 1,927.98/x
  3. Step 3: Cross multiply
    3,161.19x = 4,742.07 × 1,927.98
  4. Step 4: Simplify right side
    3,161.19x = 9,142,616.12
  5. Step 5: Solve for x
    x = 9,142,616.12/3,161.19
  6. Step 6: Final answer
    x = 2,892.14

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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.