Home / 3,146.13-4,715.70-1,478.54

Finding the Fourth Proportional to 3,146.13, 4,715.70 and 1,478.54

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Solution

The fourth proportional to 3,146.13, 4,715.70 and 1,478.54 is: 2,216.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.13 : 4,715.70 = 1,478.54 : x
  2. Step 2: Convert to fraction form
    3,146.13/4,715.70 = 1,478.54/x
  3. Step 3: Cross multiply
    3,146.13x = 4,715.70 × 1,478.54
  4. Step 4: Simplify right side
    3,146.13x = 6,972,351.08
  5. Step 5: Solve for x
    x = 6,972,351.08/3,146.13
  6. Step 6: Final answer
    x = 2,216.17

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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.