Home / 3,108.47-4,288.55-1,849.86

Finding the Fourth Proportional to 3,108.47, 4,288.55 and 1,849.86

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Solution

The fourth proportional to 3,108.47, 4,288.55 and 1,849.86 is: 2,552.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.47 : 4,288.55 = 1,849.86 : x
  2. Step 2: Convert to fraction form
    3,108.47/4,288.55 = 1,849.86/x
  3. Step 3: Cross multiply
    3,108.47x = 4,288.55 × 1,849.86
  4. Step 4: Simplify right side
    3,108.47x = 7,933,207.85
  5. Step 5: Solve for x
    x = 7,933,207.85/3,108.47
  6. Step 6: Final answer
    x = 2,552.13

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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.