Home / 3,079.10-4,249.16-1,900.85

Finding the Fourth Proportional to 3,079.10, 4,249.16 and 1,900.85

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Solution

The fourth proportional to 3,079.10, 4,249.16 and 1,900.85 is: 2,623.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.10 : 4,249.16 = 1,900.85 : x
  2. Step 2: Convert to fraction form
    3,079.10/4,249.16 = 1,900.85/x
  3. Step 3: Cross multiply
    3,079.10x = 4,249.16 × 1,900.85
  4. Step 4: Simplify right side
    3,079.10x = 8,077,015.79
  5. Step 5: Solve for x
    x = 8,077,015.79/3,079.10
  6. Step 6: Final answer
    x = 2,623.17

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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.