Home / 5,122.21-7,069.34-2,998.39

Finding the Fourth Proportional to 5,122.21, 7,069.34 and 2,998.39

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Solution

The fourth proportional to 5,122.21, 7,069.34 and 2,998.39 is: 4,138.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.21 : 7,069.34 = 2,998.39 : x
  2. Step 2: Convert to fraction form
    5,122.21/7,069.34 = 2,998.39/x
  3. Step 3: Cross multiply
    5,122.21x = 7,069.34 × 2,998.39
  4. Step 4: Simplify right side
    5,122.21x = 21,196,623.37
  5. Step 5: Solve for x
    x = 21,196,623.37/5,122.21
  6. Step 6: Final answer
    x = 4,138.18

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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.