Home / 2,107.68-3,160.60-1,621.07

Finding the Fourth Proportional to 2,107.68, 3,160.60 and 1,621.07

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Solution

The fourth proportional to 2,107.68, 3,160.60 and 1,621.07 is: 2,430.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.68 : 3,160.60 = 1,621.07 : x
  2. Step 2: Convert to fraction form
    2,107.68/3,160.60 = 1,621.07/x
  3. Step 3: Cross multiply
    2,107.68x = 3,160.60 × 1,621.07
  4. Step 4: Simplify right side
    2,107.68x = 5,123,553.84
  5. Step 5: Solve for x
    x = 5,123,553.84/2,107.68
  6. Step 6: Final answer
    x = 2,430.90

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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.