Home / 3,707.07-5,115.26-2,134.86

Finding the Fourth Proportional to 3,707.07, 5,115.26 and 2,134.86

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Solution

The fourth proportional to 3,707.07, 5,115.26 and 2,134.86 is: 2,945.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.07 : 5,115.26 = 2,134.86 : x
  2. Step 2: Convert to fraction form
    3,707.07/5,115.26 = 2,134.86/x
  3. Step 3: Cross multiply
    3,707.07x = 5,115.26 × 2,134.86
  4. Step 4: Simplify right side
    3,707.07x = 10,920,369.30
  5. Step 5: Solve for x
    x = 10,920,369.30/3,707.07
  6. Step 6: Final answer
    x = 2,945.82

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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.