Home / 3,429.36-5,140.53-1,581.84

Finding the Fourth Proportional to 3,429.36, 5,140.53 and 1,581.84

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Solution

The fourth proportional to 3,429.36, 5,140.53 and 1,581.84 is: 2,371.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.36 : 5,140.53 = 1,581.84 : x
  2. Step 2: Convert to fraction form
    3,429.36/5,140.53 = 1,581.84/x
  3. Step 3: Cross multiply
    3,429.36x = 5,140.53 × 1,581.84
  4. Step 4: Simplify right side
    3,429.36x = 8,131,495.98
  5. Step 5: Solve for x
    x = 8,131,495.98/3,429.36
  6. Step 6: Final answer
    x = 2,371.14

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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.