Home / 7,905.54-11,859-3,225.90

Finding the Fourth Proportional to 7,905.54, 11,859 and 3,225.90

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Solution

The fourth proportional to 7,905.54, 11,859 and 3,225.90 is: 4,839.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.54 : 11,859 = 3,225.90 : x
  2. Step 2: Convert to fraction form
    7,905.54/11,859 = 3,225.90/x
  3. Step 3: Cross multiply
    7,905.54x = 11,859 × 3,225.90
  4. Step 4: Simplify right side
    7,905.54x = 38,255,948.10
  5. Step 5: Solve for x
    x = 38,255,948.10/7,905.54
  6. Step 6: Final answer
    x = 4,839.13

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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.