Home / 7,044.08-9,720.96-3,900.56

Finding the Fourth Proportional to 7,044.08, 9,720.96 and 3,900.56

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Solution

The fourth proportional to 7,044.08, 9,720.96 and 3,900.56 is: 5,382.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,044.08 : 9,720.96 = 3,900.56 : x
  2. Step 2: Convert to fraction form
    7,044.08/9,720.96 = 3,900.56/x
  3. Step 3: Cross multiply
    7,044.08x = 9,720.96 × 3,900.56
  4. Step 4: Simplify right side
    7,044.08x = 37,917,187.74
  5. Step 5: Solve for x
    x = 37,917,187.74/7,044.08
  6. Step 6: Final answer
    x = 5,382.84

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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.