Home / 4,747.63-7,121.54-1,631.22

Finding the Fourth Proportional to 4,747.63, 7,121.54 and 1,631.22

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Solution

The fourth proportional to 4,747.63, 7,121.54 and 1,631.22 is: 2,446.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.63 : 7,121.54 = 1,631.22 : x
  2. Step 2: Convert to fraction form
    4,747.63/7,121.54 = 1,631.22/x
  3. Step 3: Cross multiply
    4,747.63x = 7,121.54 × 1,631.22
  4. Step 4: Simplify right side
    4,747.63x = 11,616,798.48
  5. Step 5: Solve for x
    x = 11,616,798.48/4,747.63
  6. Step 6: Final answer
    x = 2,446.86

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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.