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Finding the Fourth Proportional to 7,183.90, 9,913.08 and 4,040.02

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Solution

The fourth proportional to 7,183.90, 9,913.08 and 4,040.02 is: 5,574.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183.90 : 9,913.08 = 4,040.02 : x
  2. Step 2: Convert to fraction form
    7,183.90/9,913.08 = 4,040.02/x
  3. Step 3: Cross multiply
    7,183.90x = 9,913.08 × 4,040.02
  4. Step 4: Simplify right side
    7,183.90x = 40,049,041.46
  5. Step 5: Solve for x
    x = 40,049,041.46/7,183.90
  6. Step 6: Final answer
    x = 5,574.83

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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.