Home / 4,089.88-5,647.22-3,144.21

Finding the Fourth Proportional to 4,089.88, 5,647.22 and 3,144.21

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Solution

The fourth proportional to 4,089.88, 5,647.22 and 3,144.21 is: 4,341.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.88 : 5,647.22 = 3,144.21 : x
  2. Step 2: Convert to fraction form
    4,089.88/5,647.22 = 3,144.21/x
  3. Step 3: Cross multiply
    4,089.88x = 5,647.22 × 3,144.21
  4. Step 4: Simplify right side
    4,089.88x = 17,756,045.60
  5. Step 5: Solve for x
    x = 17,756,045.60/4,089.88
  6. Step 6: Final answer
    x = 4,341.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.