Home / 7,890.38-11,833-2,623.97

Finding the Fourth Proportional to 7,890.38, 11,833 and 2,623.97

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Solution

The fourth proportional to 7,890.38, 11,833 and 2,623.97 is: 3,935.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.38 : 11,833 = 2,623.97 : x
  2. Step 2: Convert to fraction form
    7,890.38/11,833 = 2,623.97/x
  3. Step 3: Cross multiply
    7,890.38x = 11,833 × 2,623.97
  4. Step 4: Simplify right side
    7,890.38x = 31,049,437.01
  5. Step 5: Solve for x
    x = 31,049,437.01/7,890.38
  6. Step 6: Final answer
    x = 3,935.10

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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.