Home / 3,938.99-5,435.96-2,260.26

Finding the Fourth Proportional to 3,938.99, 5,435.96 and 2,260.26

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Solution

The fourth proportional to 3,938.99, 5,435.96 and 2,260.26 is: 3,119.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.99 : 5,435.96 = 2,260.26 : x
  2. Step 2: Convert to fraction form
    3,938.99/5,435.96 = 2,260.26/x
  3. Step 3: Cross multiply
    3,938.99x = 5,435.96 × 2,260.26
  4. Step 4: Simplify right side
    3,938.99x = 12,286,671.65
  5. Step 5: Solve for x
    x = 12,286,671.65/3,938.99
  6. Step 6: Final answer
    x = 3,119.25

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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.