Home / 3,436.45-5,157.26-1,357

Finding the Fourth Proportional to 3,436.45, 5,157.26 and 1,357

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Solution

The fourth proportional to 3,436.45, 5,157.26 and 1,357 is: 2,036.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,436.45 : 5,157.26 = 1,357 : x
  2. Step 2: Convert to fraction form
    3,436.45/5,157.26 = 1,357/x
  3. Step 3: Cross multiply
    3,436.45x = 5,157.26 × 1,357
  4. Step 4: Simplify right side
    3,436.45x = 6,998,401.82
  5. Step 5: Solve for x
    x = 6,998,401.82/3,436.45
  6. Step 6: Final answer
    x = 2,036.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.