Home / 3,389.56-4,677.78-1,897.54

Finding the Fourth Proportional to 3,389.56, 4,677.78 and 1,897.54

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Solution

The fourth proportional to 3,389.56, 4,677.78 and 1,897.54 is: 2,618.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.56 : 4,677.78 = 1,897.54 : x
  2. Step 2: Convert to fraction form
    3,389.56/4,677.78 = 1,897.54/x
  3. Step 3: Cross multiply
    3,389.56x = 4,677.78 × 1,897.54
  4. Step 4: Simplify right side
    3,389.56x = 8,876,270.08
  5. Step 5: Solve for x
    x = 8,876,270.08/3,389.56
  6. Step 6: Final answer
    x = 2,618.71

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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.