Home / 5,261.72-7,261.20-2,903.85

Finding the Fourth Proportional to 5,261.72, 7,261.20 and 2,903.85

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Solution

The fourth proportional to 5,261.72, 7,261.20 and 2,903.85 is: 4,007.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.72 : 7,261.20 = 2,903.85 : x
  2. Step 2: Convert to fraction form
    5,261.72/7,261.20 = 2,903.85/x
  3. Step 3: Cross multiply
    5,261.72x = 7,261.20 × 2,903.85
  4. Step 4: Simplify right side
    5,261.72x = 21,085,435.62
  5. Step 5: Solve for x
    x = 21,085,435.62/5,261.72
  6. Step 6: Final answer
    x = 4,007.33

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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.