Home / 3,147.14-4,721.29-1,038.89

Finding the Fourth Proportional to 3,147.14, 4,721.29 and 1,038.89

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Solution

The fourth proportional to 3,147.14, 4,721.29 and 1,038.89 is: 1,558.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.14 : 4,721.29 = 1,038.89 : x
  2. Step 2: Convert to fraction form
    3,147.14/4,721.29 = 1,038.89/x
  3. Step 3: Cross multiply
    3,147.14x = 4,721.29 × 1,038.89
  4. Step 4: Simplify right side
    3,147.14x = 4,904,900.97
  5. Step 5: Solve for x
    x = 4,904,900.97/3,147.14
  6. Step 6: Final answer
    x = 1,558.53

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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.