Home / 7,936.48-11,905.20-2,389.36

Finding the Fourth Proportional to 7,936.48, 11,905.20 and 2,389.36

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Solution

The fourth proportional to 7,936.48, 11,905.20 and 2,389.36 is: 3,584.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,936.48 : 11,905.20 = 2,389.36 : x
  2. Step 2: Convert to fraction form
    7,936.48/11,905.20 = 2,389.36/x
  3. Step 3: Cross multiply
    7,936.48x = 11,905.20 × 2,389.36
  4. Step 4: Simplify right side
    7,936.48x = 28,445,808.67
  5. Step 5: Solve for x
    x = 28,445,808.67/7,936.48
  6. Step 6: Final answer
    x = 3,584.18

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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.