Home / 3,419.77-5,130.35-1,080.14

Finding the Fourth Proportional to 3,419.77, 5,130.35 and 1,080.14

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Solution

The fourth proportional to 3,419.77, 5,130.35 and 1,080.14 is: 1,620.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.77 : 5,130.35 = 1,080.14 : x
  2. Step 2: Convert to fraction form
    3,419.77/5,130.35 = 1,080.14/x
  3. Step 3: Cross multiply
    3,419.77x = 5,130.35 × 1,080.14
  4. Step 4: Simplify right side
    3,419.77x = 5,541,496.25
  5. Step 5: Solve for x
    x = 5,541,496.25/3,419.77
  6. Step 6: Final answer
    x = 1,620.43

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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.