Home / 3,480.14-5,219.64-1,140.11

Finding the Fourth Proportional to 3,480.14, 5,219.64 and 1,140.11

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Solution

The fourth proportional to 3,480.14, 5,219.64 and 1,140.11 is: 1,709.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.14 : 5,219.64 = 1,140.11 : x
  2. Step 2: Convert to fraction form
    3,480.14/5,219.64 = 1,140.11/x
  3. Step 3: Cross multiply
    3,480.14x = 5,219.64 × 1,140.11
  4. Step 4: Simplify right side
    3,480.14x = 5,950,963.76
  5. Step 5: Solve for x
    x = 5,950,963.76/3,480.14
  6. Step 6: Final answer
    x = 1,709.98

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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.