Home / 4,972.21-7,458.14-1,274.47

Finding the Fourth Proportional to 4,972.21, 7,458.14 and 1,274.47

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Solution

The fourth proportional to 4,972.21, 7,458.14 and 1,274.47 is: 1,911.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,972.21 : 7,458.14 = 1,274.47 : x
  2. Step 2: Convert to fraction form
    4,972.21/7,458.14 = 1,274.47/x
  3. Step 3: Cross multiply
    4,972.21x = 7,458.14 × 1,274.47
  4. Step 4: Simplify right side
    4,972.21x = 9,505,175.69
  5. Step 5: Solve for x
    x = 9,505,175.69/4,972.21
  6. Step 6: Final answer
    x = 1,911.66

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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.