Home / 2,981.71-4,464.25-1,939.11

Finding the Fourth Proportional to 2,981.71, 4,464.25 and 1,939.11

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Solution

The fourth proportional to 2,981.71, 4,464.25 and 1,939.11 is: 2,903.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.71 : 4,464.25 = 1,939.11 : x
  2. Step 2: Convert to fraction form
    2,981.71/4,464.25 = 1,939.11/x
  3. Step 3: Cross multiply
    2,981.71x = 4,464.25 × 1,939.11
  4. Step 4: Simplify right side
    2,981.71x = 8,656,650.23
  5. Step 5: Solve for x
    x = 8,656,650.23/2,981.71
  6. Step 6: Final answer
    x = 2,903.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.