Home / 3,705.57-5,115.23-2,759.70

Finding the Fourth Proportional to 3,705.57, 5,115.23 and 2,759.70

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Solution

The fourth proportional to 3,705.57, 5,115.23 and 2,759.70 is: 3,809.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,705.57 : 5,115.23 = 2,759.70 : x
  2. Step 2: Convert to fraction form
    3,705.57/5,115.23 = 2,759.70/x
  3. Step 3: Cross multiply
    3,705.57x = 5,115.23 × 2,759.70
  4. Step 4: Simplify right side
    3,705.57x = 14,116,486.43
  5. Step 5: Solve for x
    x = 14,116,486.43/3,705.57
  6. Step 6: Final answer
    x = 3,809.53

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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.