Home / 3,939.55-5,435.06-2,260.35

Finding the Fourth Proportional to 3,939.55, 5,435.06 and 2,260.35

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Solution

The fourth proportional to 3,939.55, 5,435.06 and 2,260.35 is: 3,118.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.55 : 5,435.06 = 2,260.35 : x
  2. Step 2: Convert to fraction form
    3,939.55/5,435.06 = 2,260.35/x
  3. Step 3: Cross multiply
    3,939.55x = 5,435.06 × 2,260.35
  4. Step 4: Simplify right side
    3,939.55x = 12,285,126.57
  5. Step 5: Solve for x
    x = 12,285,126.57/3,939.55
  6. Step 6: Final answer
    x = 3,118.41

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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.