Home / 3,829.80-5,742.36-1,637.28

Finding the Fourth Proportional to 3,829.80, 5,742.36 and 1,637.28

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Solution

The fourth proportional to 3,829.80, 5,742.36 and 1,637.28 is: 2,454.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,829.80 : 5,742.36 = 1,637.28 : x
  2. Step 2: Convert to fraction form
    3,829.80/5,742.36 = 1,637.28/x
  3. Step 3: Cross multiply
    3,829.80x = 5,742.36 × 1,637.28
  4. Step 4: Simplify right side
    3,829.80x = 9,401,851.18
  5. Step 5: Solve for x
    x = 9,401,851.18/3,829.80
  6. Step 6: Final answer
    x = 2,454.92

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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.