Home / 3,415.38-5,127.93-3,258.78

Finding the Fourth Proportional to 3,415.38, 5,127.93 and 3,258.78

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Solution

The fourth proportional to 3,415.38, 5,127.93 and 3,258.78 is: 4,892.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.38 : 5,127.93 = 3,258.78 : x
  2. Step 2: Convert to fraction form
    3,415.38/5,127.93 = 3,258.78/x
  3. Step 3: Cross multiply
    3,415.38x = 5,127.93 × 3,258.78
  4. Step 4: Simplify right side
    3,415.38x = 16,710,795.73
  5. Step 5: Solve for x
    x = 16,710,795.73/3,415.38
  6. Step 6: Final answer
    x = 4,892.81

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1.5x scale

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.