Home / 5,261.69-7,257.89-3,135.75

Finding the Fourth Proportional to 5,261.69, 7,257.89 and 3,135.75

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Solution

The fourth proportional to 5,261.69, 7,257.89 and 3,135.75 is: 4,325.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.69 : 7,257.89 = 3,135.75 : x
  2. Step 2: Convert to fraction form
    5,261.69/7,257.89 = 3,135.75/x
  3. Step 3: Cross multiply
    5,261.69x = 7,257.89 × 3,135.75
  4. Step 4: Simplify right side
    5,261.69x = 22,758,936.41
  5. Step 5: Solve for x
    x = 22,758,936.41/5,261.69
  6. Step 6: Final answer
    x = 4,325.41

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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.