Home / 7,931.29-11,893.38-2,382.79

Finding the Fourth Proportional to 7,931.29, 11,893.38 and 2,382.79

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Solution

The fourth proportional to 7,931.29, 11,893.38 and 2,382.79 is: 3,573.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.29 : 11,893.38 = 2,382.79 : x
  2. Step 2: Convert to fraction form
    7,931.29/11,893.38 = 2,382.79/x
  3. Step 3: Cross multiply
    7,931.29x = 11,893.38 × 2,382.79
  4. Step 4: Simplify right side
    7,931.29x = 28,339,426.93
  5. Step 5: Solve for x
    x = 28,339,426.93/7,931.29
  6. Step 6: Final answer
    x = 3,573.12

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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.