Home / 7,361.20-11,041.79-2,978.69

Finding the Fourth Proportional to 7,361.20, 11,041.79 and 2,978.69

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Solution

The fourth proportional to 7,361.20, 11,041.79 and 2,978.69 is: 4,468.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,361.20 : 11,041.79 = 2,978.69 : x
  2. Step 2: Convert to fraction form
    7,361.20/11,041.79 = 2,978.69/x
  3. Step 3: Cross multiply
    7,361.20x = 11,041.79 × 2,978.69
  4. Step 4: Simplify right side
    7,361.20x = 32,890,069.46
  5. Step 5: Solve for x
    x = 32,890,069.46/7,361.20
  6. Step 6: Final answer
    x = 4,468.03

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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.