Home / 3,808.34-5,254.96-2,129.52

Finding the Fourth Proportional to 3,808.34, 5,254.96 and 2,129.52

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Solution

The fourth proportional to 3,808.34, 5,254.96 and 2,129.52 is: 2,938.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.34 : 5,254.96 = 2,129.52 : x
  2. Step 2: Convert to fraction form
    3,808.34/5,254.96 = 2,129.52/x
  3. Step 3: Cross multiply
    3,808.34x = 5,254.96 × 2,129.52
  4. Step 4: Simplify right side
    3,808.34x = 11,190,542.42
  5. Step 5: Solve for x
    x = 11,190,542.42/3,808.34
  6. Step 6: Final answer
    x = 2,938.43

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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.