Home / 3,600.63-5,400.93-2,139.42

Finding the Fourth Proportional to 3,600.63, 5,400.93 and 2,139.42

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Solution

The fourth proportional to 3,600.63, 5,400.93 and 2,139.42 is: 3,209.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,600.63 : 5,400.93 = 2,139.42 : x
  2. Step 2: Convert to fraction form
    3,600.63/5,400.93 = 2,139.42/x
  3. Step 3: Cross multiply
    3,600.63x = 5,400.93 × 2,139.42
  4. Step 4: Simplify right side
    3,600.63x = 11,554,857.66
  5. Step 5: Solve for x
    x = 11,554,857.66/3,600.63
  6. Step 6: Final answer
    x = 3,209.12

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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.