Home / 5,156.88-7,115.09-3,389.06

Finding the Fourth Proportional to 5,156.88, 7,115.09 and 3,389.06

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Solution

The fourth proportional to 5,156.88, 7,115.09 and 3,389.06 is: 4,675.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156.88 : 7,115.09 = 3,389.06 : x
  2. Step 2: Convert to fraction form
    5,156.88/7,115.09 = 3,389.06/x
  3. Step 3: Cross multiply
    5,156.88x = 7,115.09 × 3,389.06
  4. Step 4: Simplify right side
    5,156.88x = 24,113,414.39
  5. Step 5: Solve for x
    x = 24,113,414.39/5,156.88
  6. Step 6: Final answer
    x = 4,675.97

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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.