Home / 7,167.34-10,749.79-1,972

Finding the Fourth Proportional to 7,167.34, 10,749.79 and 1,972

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Solution

The fourth proportional to 7,167.34, 10,749.79 and 1,972 is: 2,957.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,167.34 : 10,749.79 = 1,972 : x
  2. Step 2: Convert to fraction form
    7,167.34/10,749.79 = 1,972/x
  3. Step 3: Cross multiply
    7,167.34x = 10,749.79 × 1,972
  4. Step 4: Simplify right side
    7,167.34x = 21,198,585.88
  5. Step 5: Solve for x
    x = 21,198,585.88/7,167.34
  6. Step 6: Final answer
    x = 2,957.66

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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.