Home / 3,428.08-5,138.22-2,130.44

Finding the Fourth Proportional to 3,428.08, 5,138.22 and 2,130.44

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Solution

The fourth proportional to 3,428.08, 5,138.22 and 2,130.44 is: 3,193.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.08 : 5,138.22 = 2,130.44 : x
  2. Step 2: Convert to fraction form
    3,428.08/5,138.22 = 2,130.44/x
  3. Step 3: Cross multiply
    3,428.08x = 5,138.22 × 2,130.44
  4. Step 4: Simplify right side
    3,428.08x = 10,946,669.42
  5. Step 5: Solve for x
    x = 10,946,669.42/3,428.08
  6. Step 6: Final answer
    x = 3,193.24

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1.5x scale

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.