Home / 3,617.34-4,991.78-2,125.42

Finding the Fourth Proportional to 3,617.34, 4,991.78 and 2,125.42

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Solution

The fourth proportional to 3,617.34, 4,991.78 and 2,125.42 is: 2,932.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.34 : 4,991.78 = 2,125.42 : x
  2. Step 2: Convert to fraction form
    3,617.34/4,991.78 = 2,125.42/x
  3. Step 3: Cross multiply
    3,617.34x = 4,991.78 × 2,125.42
  4. Step 4: Simplify right side
    3,617.34x = 10,609,638.00
  5. Step 5: Solve for x
    x = 10,609,638.00/3,617.34
  6. Step 6: Final answer
    x = 2,932.99

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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.