Home / 5,137.11-7,089.13-2,868.33

Finding the Fourth Proportional to 5,137.11, 7,089.13 and 2,868.33

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Solution

The fourth proportional to 5,137.11, 7,089.13 and 2,868.33 is: 3,958.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.11 : 7,089.13 = 2,868.33 : x
  2. Step 2: Convert to fraction form
    5,137.11/7,089.13 = 2,868.33/x
  3. Step 3: Cross multiply
    5,137.11x = 7,089.13 × 2,868.33
  4. Step 4: Simplify right side
    5,137.11x = 20,333,994.42
  5. Step 5: Solve for x
    x = 20,333,994.42/5,137.11
  6. Step 6: Final answer
    x = 3,958.26

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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.