Home / 3,119.70-4,305.91-2,057.66

Finding the Fourth Proportional to 3,119.70, 4,305.91 and 2,057.66

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Solution

The fourth proportional to 3,119.70, 4,305.91 and 2,057.66 is: 2,840.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.70 : 4,305.91 = 2,057.66 : x
  2. Step 2: Convert to fraction form
    3,119.70/4,305.91 = 2,057.66/x
  3. Step 3: Cross multiply
    3,119.70x = 4,305.91 × 2,057.66
  4. Step 4: Simplify right side
    3,119.70x = 8,860,077.24
  5. Step 5: Solve for x
    x = 8,860,077.24/3,119.70
  6. Step 6: Final answer
    x = 2,840.04

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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.