Home / 4,219.84-5,815.39-3,469.24

Finding the Fourth Proportional to 4,219.84, 5,815.39 and 3,469.24

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Solution

The fourth proportional to 4,219.84, 5,815.39 and 3,469.24 is: 4,780.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,219.84 : 5,815.39 = 3,469.24 : x
  2. Step 2: Convert to fraction form
    4,219.84/5,815.39 = 3,469.24/x
  3. Step 3: Cross multiply
    4,219.84x = 5,815.39 × 3,469.24
  4. Step 4: Simplify right side
    4,219.84x = 20,174,937.18
  5. Step 5: Solve for x
    x = 20,174,937.18/4,219.84
  6. Step 6: Final answer
    x = 4,780.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.