Home / 4,747.12-7,121.49-1,460.14

Finding the Fourth Proportional to 4,747.12, 7,121.49 and 1,460.14

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Solution

The fourth proportional to 4,747.12, 7,121.49 and 1,460.14 is: 2,190.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.12 : 7,121.49 = 1,460.14 : x
  2. Step 2: Convert to fraction form
    4,747.12/7,121.49 = 1,460.14/x
  3. Step 3: Cross multiply
    4,747.12x = 7,121.49 × 1,460.14
  4. Step 4: Simplify right side
    4,747.12x = 10,398,372.41
  5. Step 5: Solve for x
    x = 10,398,372.41/4,747.12
  6. Step 6: Final answer
    x = 2,190.46

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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.