Home / 2,680.16-3,703.69-2,015.85

Finding the Fourth Proportional to 2,680.16, 3,703.69 and 2,015.85

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Solution

The fourth proportional to 2,680.16, 3,703.69 and 2,015.85 is: 2,785.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680.16 : 3,703.69 = 2,015.85 : x
  2. Step 2: Convert to fraction form
    2,680.16/3,703.69 = 2,015.85/x
  3. Step 3: Cross multiply
    2,680.16x = 3,703.69 × 2,015.85
  4. Step 4: Simplify right side
    2,680.16x = 7,466,099.90
  5. Step 5: Solve for x
    x = 7,466,099.90/2,680.16
  6. Step 6: Final answer
    x = 2,785.70

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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.