Home / 7,420.61-11,132-2,226.89

Finding the Fourth Proportional to 7,420.61, 11,132 and 2,226.89

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Solution

The fourth proportional to 7,420.61, 11,132 and 2,226.89 is: 3,340.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.61 : 11,132 = 2,226.89 : x
  2. Step 2: Convert to fraction form
    7,420.61/11,132 = 2,226.89/x
  3. Step 3: Cross multiply
    7,420.61x = 11,132 × 2,226.89
  4. Step 4: Simplify right side
    7,420.61x = 24,789,739.48
  5. Step 5: Solve for x
    x = 24,789,739.48/7,420.61
  6. Step 6: Final answer
    x = 3,340.66

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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.