Home / 7,933.90-11,900.79-2,387.22

Finding the Fourth Proportional to 7,933.90, 11,900.79 and 2,387.22

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Solution

The fourth proportional to 7,933.90, 11,900.79 and 2,387.22 is: 3,580.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,933.90 : 11,900.79 = 2,387.22 : x
  2. Step 2: Convert to fraction form
    7,933.90/11,900.79 = 2,387.22/x
  3. Step 3: Cross multiply
    7,933.90x = 11,900.79 × 2,387.22
  4. Step 4: Simplify right side
    7,933.90x = 28,409,803.90
  5. Step 5: Solve for x
    x = 28,409,803.90/7,933.90
  6. Step 6: Final answer
    x = 3,580.81

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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.