Home / 3,331.86-4,997.28-1,140.09

Finding the Fourth Proportional to 3,331.86, 4,997.28 and 1,140.09

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Solution

The fourth proportional to 3,331.86, 4,997.28 and 1,140.09 is: 1,709.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,331.86 : 4,997.28 = 1,140.09 : x
  2. Step 2: Convert to fraction form
    3,331.86/4,997.28 = 1,140.09/x
  3. Step 3: Cross multiply
    3,331.86x = 4,997.28 × 1,140.09
  4. Step 4: Simplify right side
    3,331.86x = 5,697,328.08
  5. Step 5: Solve for x
    x = 5,697,328.08/3,331.86
  6. Step 6: Final answer
    x = 1,709.95

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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.