Home / 3,105.14-4,285.02-1,707.88

Finding the Fourth Proportional to 3,105.14, 4,285.02 and 1,707.88

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Solution

The fourth proportional to 3,105.14, 4,285.02 and 1,707.88 is: 2,356.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.14 : 4,285.02 = 1,707.88 : x
  2. Step 2: Convert to fraction form
    3,105.14/4,285.02 = 1,707.88/x
  3. Step 3: Cross multiply
    3,105.14x = 4,285.02 × 1,707.88
  4. Step 4: Simplify right side
    3,105.14x = 7,318,299.96
  5. Step 5: Solve for x
    x = 7,318,299.96/3,105.14
  6. Step 6: Final answer
    x = 2,356.83

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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.