Home / 4,754.53-7,131.81-1,291.78

Finding the Fourth Proportional to 4,754.53, 7,131.81 and 1,291.78

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Solution

The fourth proportional to 4,754.53, 7,131.81 and 1,291.78 is: 1,937.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,754.53 : 7,131.81 = 1,291.78 : x
  2. Step 2: Convert to fraction form
    4,754.53/7,131.81 = 1,291.78/x
  3. Step 3: Cross multiply
    4,754.53x = 7,131.81 × 1,291.78
  4. Step 4: Simplify right side
    4,754.53x = 9,212,743.28
  5. Step 5: Solve for x
    x = 9,212,743.28/4,754.53
  6. Step 6: Final answer
    x = 1,937.68

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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.