Home / 4,868.80-7,286.40-2,922.40

Finding the Fourth Proportional to 4,868.80, 7,286.40 and 2,922.40

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Solution

The fourth proportional to 4,868.80, 7,286.40 and 2,922.40 is: 4,373.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,868.80 : 7,286.40 = 2,922.40 : x
  2. Step 2: Convert to fraction form
    4,868.80/7,286.40 = 2,922.40/x
  3. Step 3: Cross multiply
    4,868.80x = 7,286.40 × 2,922.40
  4. Step 4: Simplify right side
    4,868.80x = 21,293,775.36
  5. Step 5: Solve for x
    x = 21,293,775.36/4,868.80
  6. Step 6: Final answer
    x = 4,373.52

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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.