Home / 3,940.32-5,909.22-1,859.07

Finding the Fourth Proportional to 3,940.32, 5,909.22 and 1,859.07

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Solution

The fourth proportional to 3,940.32, 5,909.22 and 1,859.07 is: 2,788.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.32 : 5,909.22 = 1,859.07 : x
  2. Step 2: Convert to fraction form
    3,940.32/5,909.22 = 1,859.07/x
  3. Step 3: Cross multiply
    3,940.32x = 5,909.22 × 1,859.07
  4. Step 4: Simplify right side
    3,940.32x = 10,985,653.63
  5. Step 5: Solve for x
    x = 10,985,653.63/3,940.32
  6. Step 6: Final answer
    x = 2,788.01

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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.