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Finding the Fourth Proportional to 2,246.48, 3,369.92 and 930

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Solution

The fourth proportional to 2,246.48, 3,369.92 and 930 is: 1,395.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,246.48 : 3,369.92 = 930 : x
  2. Step 2: Convert to fraction form
    2,246.48/3,369.92 = 930/x
  3. Step 3: Cross multiply
    2,246.48x = 3,369.92 × 930
  4. Step 4: Simplify right side
    2,246.48x = 3,134,025.60
  5. Step 5: Solve for x
    x = 3,134,025.60/2,246.48
  6. Step 6: Final answer
    x = 1,395.08

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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.