Home / 7,270.40-10,910.37-3,985.79

Finding the Fourth Proportional to 7,270.40, 10,910.37 and 3,985.79

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Solution

The fourth proportional to 7,270.40, 10,910.37 and 3,985.79 is: 5,981.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,270.40 : 10,910.37 = 3,985.79 : x
  2. Step 2: Convert to fraction form
    7,270.40/10,910.37 = 3,985.79/x
  3. Step 3: Cross multiply
    7,270.40x = 10,910.37 × 3,985.79
  4. Step 4: Simplify right side
    7,270.40x = 43,486,443.64
  5. Step 5: Solve for x
    x = 43,486,443.64/7,270.40
  6. Step 6: Final answer
    x = 5,981.30

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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.