Home / 4,122.19-5,684.78-2,705.30

Finding the Fourth Proportional to 4,122.19, 5,684.78 and 2,705.30

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Solution

The fourth proportional to 4,122.19, 5,684.78 and 2,705.30 is: 3,730.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.19 : 5,684.78 = 2,705.30 : x
  2. Step 2: Convert to fraction form
    4,122.19/5,684.78 = 2,705.30/x
  3. Step 3: Cross multiply
    4,122.19x = 5,684.78 × 2,705.30
  4. Step 4: Simplify right side
    4,122.19x = 15,379,034.99
  5. Step 5: Solve for x
    x = 15,379,034.99/4,122.19
  6. Step 6: Final answer
    x = 3,730.79

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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.