Home / 3,397.68-5,090.75-1,643.51

Finding the Fourth Proportional to 3,397.68, 5,090.75 and 1,643.51

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Solution

The fourth proportional to 3,397.68, 5,090.75 and 1,643.51 is: 2,462.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.68 : 5,090.75 = 1,643.51 : x
  2. Step 2: Convert to fraction form
    3,397.68/5,090.75 = 1,643.51/x
  3. Step 3: Cross multiply
    3,397.68x = 5,090.75 × 1,643.51
  4. Step 4: Simplify right side
    3,397.68x = 8,366,709.20
  5. Step 5: Solve for x
    x = 8,366,709.20/3,397.68
  6. Step 6: Final answer
    x = 2,462.48

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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.