Home / 4,107.45-5,665.08-2,689.56

Finding the Fourth Proportional to 4,107.45, 5,665.08 and 2,689.56

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Solution

The fourth proportional to 4,107.45, 5,665.08 and 2,689.56 is: 3,709.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,107.45 : 5,665.08 = 2,689.56 : x
  2. Step 2: Convert to fraction form
    4,107.45/5,665.08 = 2,689.56/x
  3. Step 3: Cross multiply
    4,107.45x = 5,665.08 × 2,689.56
  4. Step 4: Simplify right side
    4,107.45x = 15,236,572.56
  5. Step 5: Solve for x
    x = 15,236,572.56/4,107.45
  6. Step 6: Final answer
    x = 3,709.50

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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.