Home / 3,615.99-5,421.92-2,156.17

Finding the Fourth Proportional to 3,615.99, 5,421.92 and 2,156.17

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Solution

The fourth proportional to 3,615.99, 5,421.92 and 2,156.17 is: 3,233.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.99 : 5,421.92 = 2,156.17 : x
  2. Step 2: Convert to fraction form
    3,615.99/5,421.92 = 2,156.17/x
  3. Step 3: Cross multiply
    3,615.99x = 5,421.92 × 2,156.17
  4. Step 4: Simplify right side
    3,615.99x = 11,690,573.08
  5. Step 5: Solve for x
    x = 11,690,573.08/3,615.99
  6. Step 6: Final answer
    x = 3,233.02

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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.