Home / 7,040.25-9,719.73-4,391.28

Finding the Fourth Proportional to 7,040.25, 9,719.73 and 4,391.28

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Solution

The fourth proportional to 7,040.25, 9,719.73 and 4,391.28 is: 6,062.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.25 : 9,719.73 = 4,391.28 : x
  2. Step 2: Convert to fraction form
    7,040.25/9,719.73 = 4,391.28/x
  3. Step 3: Cross multiply
    7,040.25x = 9,719.73 × 4,391.28
  4. Step 4: Simplify right side
    7,040.25x = 42,682,055.95
  5. Step 5: Solve for x
    x = 42,682,055.95/7,040.25
  6. Step 6: Final answer
    x = 6,062.58

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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.