Home / 4,823.78-7,230.10-2,221.25

Finding the Fourth Proportional to 4,823.78, 7,230.10 and 2,221.25

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Solution

The fourth proportional to 4,823.78, 7,230.10 and 2,221.25 is: 3,329.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,823.78 : 7,230.10 = 2,221.25 : x
  2. Step 2: Convert to fraction form
    4,823.78/7,230.10 = 2,221.25/x
  3. Step 3: Cross multiply
    4,823.78x = 7,230.10 × 2,221.25
  4. Step 4: Simplify right side
    4,823.78x = 16,059,859.63
  5. Step 5: Solve for x
    x = 16,059,859.63/4,823.78
  6. Step 6: Final answer
    x = 3,329.31

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1.5x scale

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.