Home / 2,849.37-3,931.90-1,670.61

Finding the Fourth Proportional to 2,849.37, 3,931.90 and 1,670.61

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Solution

The fourth proportional to 2,849.37, 3,931.90 and 1,670.61 is: 2,305.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,849.37 : 3,931.90 = 1,670.61 : x
  2. Step 2: Convert to fraction form
    2,849.37/3,931.90 = 1,670.61/x
  3. Step 3: Cross multiply
    2,849.37x = 3,931.90 × 1,670.61
  4. Step 4: Simplify right side
    2,849.37x = 6,568,671.46
  5. Step 5: Solve for x
    x = 6,568,671.46/2,849.37
  6. Step 6: Final answer
    x = 2,305.31

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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.