Home / 3,419.62-5,130.14-1,080.24

Finding the Fourth Proportional to 3,419.62, 5,130.14 and 1,080.24

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Solution

The fourth proportional to 3,419.62, 5,130.14 and 1,080.24 is: 1,620.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.62 : 5,130.14 = 1,080.24 : x
  2. Step 2: Convert to fraction form
    3,419.62/5,130.14 = 1,080.24/x
  3. Step 3: Cross multiply
    3,419.62x = 5,130.14 × 1,080.24
  4. Step 4: Simplify right side
    3,419.62x = 5,541,757.79
  5. Step 5: Solve for x
    x = 5,541,757.79/3,419.62
  6. Step 6: Final answer
    x = 1,620.58

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1.5x scale

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.