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Finding the Fourth Proportional to 2,095.31, 3,142.97 and 556.31

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Solution

The fourth proportional to 2,095.31, 3,142.97 and 556.31 is: 834.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,095.31 : 3,142.97 = 556.31 : x
  2. Step 2: Convert to fraction form
    2,095.31/3,142.97 = 556.31/x
  3. Step 3: Cross multiply
    2,095.31x = 3,142.97 × 556.31
  4. Step 4: Simplify right side
    2,095.31x = 1,748,472.80
  5. Step 5: Solve for x
    x = 1,748,472.80/2,095.31
  6. Step 6: Final answer
    x = 834.47

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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.