Home / 3,709.86-5,107.95-3,149.16

Finding the Fourth Proportional to 3,709.86, 5,107.95 and 3,149.16

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Solution

The fourth proportional to 3,709.86, 5,107.95 and 3,149.16 is: 4,335.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.86 : 5,107.95 = 3,149.16 : x
  2. Step 2: Convert to fraction form
    3,709.86/5,107.95 = 3,149.16/x
  3. Step 3: Cross multiply
    3,709.86x = 5,107.95 × 3,149.16
  4. Step 4: Simplify right side
    3,709.86x = 16,085,751.82
  5. Step 5: Solve for x
    x = 16,085,751.82/3,709.86
  6. Step 6: Final answer
    x = 4,335.95

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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.