Home / 5,261.76-7,261.38-2,903.85

Finding the Fourth Proportional to 5,261.76, 7,261.38 and 2,903.85

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Solution

The fourth proportional to 5,261.76, 7,261.38 and 2,903.85 is: 4,007.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.76 : 7,261.38 = 2,903.85 : x
  2. Step 2: Convert to fraction form
    5,261.76/7,261.38 = 2,903.85/x
  3. Step 3: Cross multiply
    5,261.76x = 7,261.38 × 2,903.85
  4. Step 4: Simplify right side
    5,261.76x = 21,085,958.31
  5. Step 5: Solve for x
    x = 21,085,958.31/5,261.76
  6. Step 6: Final answer
    x = 4,007.40

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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.