Home / 5,429.97-7,493.09-3,072.15

Finding the Fourth Proportional to 5,429.97, 7,493.09 and 3,072.15

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Solution

The fourth proportional to 5,429.97, 7,493.09 and 3,072.15 is: 4,239.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.97 : 7,493.09 = 3,072.15 : x
  2. Step 2: Convert to fraction form
    5,429.97/7,493.09 = 3,072.15/x
  3. Step 3: Cross multiply
    5,429.97x = 7,493.09 × 3,072.15
  4. Step 4: Simplify right side
    5,429.97x = 23,019,881.08
  5. Step 5: Solve for x
    x = 23,019,881.08/5,429.97
  6. Step 6: Final answer
    x = 4,239.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.