Home / 3,985.35-5,499.29-2,192.53

Finding the Fourth Proportional to 3,985.35, 5,499.29 and 2,192.53

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Solution

The fourth proportional to 3,985.35, 5,499.29 and 2,192.53 is: 3,025.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.35 : 5,499.29 = 2,192.53 : x
  2. Step 2: Convert to fraction form
    3,985.35/5,499.29 = 2,192.53/x
  3. Step 3: Cross multiply
    3,985.35x = 5,499.29 × 2,192.53
  4. Step 4: Simplify right side
    3,985.35x = 12,057,358.30
  5. Step 5: Solve for x
    x = 12,057,358.30/3,985.35
  6. Step 6: Final answer
    x = 3,025.42

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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.