Home / 7,178.49-9,906.21-4,034.66

Finding the Fourth Proportional to 7,178.49, 9,906.21 and 4,034.66

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Solution

The fourth proportional to 7,178.49, 9,906.21 and 4,034.66 is: 5,567.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.49 : 9,906.21 = 4,034.66 : x
  2. Step 2: Convert to fraction form
    7,178.49/9,906.21 = 4,034.66/x
  3. Step 3: Cross multiply
    7,178.49x = 9,906.21 × 4,034.66
  4. Step 4: Simplify right side
    7,178.49x = 39,968,139.71
  5. Step 5: Solve for x
    x = 39,968,139.71/7,178.49
  6. Step 6: Final answer
    x = 5,567.76

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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.