Home / 3,141.09-4,710.78-949.95

Finding the Fourth Proportional to 3,141.09, 4,710.78 and 949.95

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Solution

The fourth proportional to 3,141.09, 4,710.78 and 949.95 is: 1,424.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141.09 : 4,710.78 = 949.95 : x
  2. Step 2: Convert to fraction form
    3,141.09/4,710.78 = 949.95/x
  3. Step 3: Cross multiply
    3,141.09x = 4,710.78 × 949.95
  4. Step 4: Simplify right side
    3,141.09x = 4,475,005.46
  5. Step 5: Solve for x
    x = 4,475,005.46/3,141.09
  6. Step 6: Final answer
    x = 1,424.67

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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.