Home / 2,628.15-3,627.11-1,963.85

Finding the Fourth Proportional to 2,628.15, 3,627.11 and 1,963.85

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Solution

The fourth proportional to 2,628.15, 3,627.11 and 1,963.85 is: 2,710.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.15 : 3,627.11 = 1,963.85 : x
  2. Step 2: Convert to fraction form
    2,628.15/3,627.11 = 1,963.85/x
  3. Step 3: Cross multiply
    2,628.15x = 3,627.11 × 1,963.85
  4. Step 4: Simplify right side
    2,628.15x = 7,123,090.15
  5. Step 5: Solve for x
    x = 7,123,090.15/2,628.15
  6. Step 6: Final answer
    x = 2,710.31

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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.