Home / 3,109.29-4,285.08-2,635.68

Finding the Fourth Proportional to 3,109.29, 4,285.08 and 2,635.68

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Solution

The fourth proportional to 3,109.29, 4,285.08 and 2,635.68 is: 3,632.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.29 : 4,285.08 = 2,635.68 : x
  2. Step 2: Convert to fraction form
    3,109.29/4,285.08 = 2,635.68/x
  3. Step 3: Cross multiply
    3,109.29x = 4,285.08 × 2,635.68
  4. Step 4: Simplify right side
    3,109.29x = 11,294,099.65
  5. Step 5: Solve for x
    x = 11,294,099.65/3,109.29
  6. Step 6: Final answer
    x = 3,632.37

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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.