Home / 3,105.18-4,285.26-2,110.91

Finding the Fourth Proportional to 3,105.18, 4,285.26 and 2,110.91

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Solution

The fourth proportional to 3,105.18, 4,285.26 and 2,110.91 is: 2,913.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.18 : 4,285.26 = 2,110.91 : x
  2. Step 2: Convert to fraction form
    3,105.18/4,285.26 = 2,110.91/x
  3. Step 3: Cross multiply
    3,105.18x = 4,285.26 × 2,110.91
  4. Step 4: Simplify right side
    3,105.18x = 9,045,776.76
  5. Step 5: Solve for x
    x = 9,045,776.76/3,105.18
  6. Step 6: Final answer
    x = 2,913.12

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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.