Home / 3,141.32-4,713.78-1,409.94

Finding the Fourth Proportional to 3,141.32, 4,713.78 and 1,409.94

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Solution

The fourth proportional to 3,141.32, 4,713.78 and 1,409.94 is: 2,115.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141.32 : 4,713.78 = 1,409.94 : x
  2. Step 2: Convert to fraction form
    3,141.32/4,713.78 = 1,409.94/x
  3. Step 3: Cross multiply
    3,141.32x = 4,713.78 × 1,409.94
  4. Step 4: Simplify right side
    3,141.32x = 6,646,146.97
  5. Step 5: Solve for x
    x = 6,646,146.97/3,141.32
  6. Step 6: Final answer
    x = 2,115.72

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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.