Home / 7,044.09-9,719.96-3,900.30

Finding the Fourth Proportional to 7,044.09, 9,719.96 and 3,900.30

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Solution

The fourth proportional to 7,044.09, 9,719.96 and 3,900.30 is: 5,381.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,044.09 : 9,719.96 = 3,900.30 : x
  2. Step 2: Convert to fraction form
    7,044.09/9,719.96 = 3,900.30/x
  3. Step 3: Cross multiply
    7,044.09x = 9,719.96 × 3,900.30
  4. Step 4: Simplify right side
    7,044.09x = 37,910,759.99
  5. Step 5: Solve for x
    x = 37,910,759.99/7,044.09
  6. Step 6: Final answer
    x = 5,381.92

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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.