Home / 3,509.66-5,265.48-1,431.14

Finding the Fourth Proportional to 3,509.66, 5,265.48 and 1,431.14

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Solution

The fourth proportional to 3,509.66, 5,265.48 and 1,431.14 is: 2,147.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.66 : 5,265.48 = 1,431.14 : x
  2. Step 2: Convert to fraction form
    3,509.66/5,265.48 = 1,431.14/x
  3. Step 3: Cross multiply
    3,509.66x = 5,265.48 × 1,431.14
  4. Step 4: Simplify right side
    3,509.66x = 7,535,639.05
  5. Step 5: Solve for x
    x = 7,535,639.05/3,509.66
  6. Step 6: Final answer
    x = 2,147.11

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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.