Home / 5,148.80-7,716.88-2,223.84

Finding the Fourth Proportional to 5,148.80, 7,716.88 and 2,223.84

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Solution

The fourth proportional to 5,148.80, 7,716.88 and 2,223.84 is: 3,333.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.80 : 7,716.88 = 2,223.84 : x
  2. Step 2: Convert to fraction form
    5,148.80/7,716.88 = 2,223.84/x
  3. Step 3: Cross multiply
    5,148.80x = 7,716.88 × 2,223.84
  4. Step 4: Simplify right side
    5,148.80x = 17,161,106.42
  5. Step 5: Solve for x
    x = 17,161,106.42/5,148.80
  6. Step 6: Final answer
    x = 3,333.03

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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.