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Finding the Fourth Proportional to 1,246.15, 1,721.52 and 967.09

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Solution

The fourth proportional to 1,246.15, 1,721.52 and 967.09 is: 1,336.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246.15 : 1,721.52 = 967.09 : x
  2. Step 2: Convert to fraction form
    1,246.15/1,721.52 = 967.09/x
  3. Step 3: Cross multiply
    1,246.15x = 1,721.52 × 967.09
  4. Step 4: Simplify right side
    1,246.15x = 1,664,864.78
  5. Step 5: Solve for x
    x = 1,664,864.78/1,246.15
  6. Step 6: Final answer
    x = 1,336.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.