Home / 7,934.34-11,903.02-3,190.87

Finding the Fourth Proportional to 7,934.34, 11,903.02 and 3,190.87

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Solution

The fourth proportional to 7,934.34, 11,903.02 and 3,190.87 is: 4,786.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,934.34 : 11,903.02 = 3,190.87 : x
  2. Step 2: Convert to fraction form
    7,934.34/11,903.02 = 3,190.87/x
  3. Step 3: Cross multiply
    7,934.34x = 11,903.02 × 3,190.87
  4. Step 4: Simplify right side
    7,934.34x = 37,980,989.43
  5. Step 5: Solve for x
    x = 37,980,989.43/7,934.34
  6. Step 6: Final answer
    x = 4,786.91

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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.