Home / 7,402.50-11,109.21-3,506.91

Finding the Fourth Proportional to 7,402.50, 11,109.21 and 3,506.91

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Solution

The fourth proportional to 7,402.50, 11,109.21 and 3,506.91 is: 5,262.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,402.50 : 11,109.21 = 3,506.91 : x
  2. Step 2: Convert to fraction form
    7,402.50/11,109.21 = 3,506.91/x
  3. Step 3: Cross multiply
    7,402.50x = 11,109.21 × 3,506.91
  4. Step 4: Simplify right side
    7,402.50x = 38,958,999.64
  5. Step 5: Solve for x
    x = 38,958,999.64/7,402.50
  6. Step 6: Final answer
    x = 5,262.95

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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.