Home / 7,787.48-11,679.05-2,239.31

Finding the Fourth Proportional to 7,787.48, 11,679.05 and 2,239.31

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Solution

The fourth proportional to 7,787.48, 11,679.05 and 2,239.31 is: 3,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.48 : 11,679.05 = 2,239.31 : x
  2. Step 2: Convert to fraction form
    7,787.48/11,679.05 = 2,239.31/x
  3. Step 3: Cross multiply
    7,787.48x = 11,679.05 × 2,239.31
  4. Step 4: Simplify right side
    7,787.48x = 26,153,048.25
  5. Step 5: Solve for x
    x = 26,153,048.25/7,787.48
  6. Step 6: Final answer
    x = 3,358.35

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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.