Home / 2,176.45-3,261.73-942.11

Finding the Fourth Proportional to 2,176.45, 3,261.73 and 942.11

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Solution

The fourth proportional to 2,176.45, 3,261.73 and 942.11 is: 1,411.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.45 : 3,261.73 = 942.11 : x
  2. Step 2: Convert to fraction form
    2,176.45/3,261.73 = 942.11/x
  3. Step 3: Cross multiply
    2,176.45x = 3,261.73 × 942.11
  4. Step 4: Simplify right side
    2,176.45x = 3,072,908.45
  5. Step 5: Solve for x
    x = 3,072,908.45/2,176.45
  6. Step 6: Final answer
    x = 1,411.89

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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.