Home / 7,717.83-11,578.01-2,718.92

Finding the Fourth Proportional to 7,717.83, 11,578.01 and 2,718.92

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Solution

The fourth proportional to 7,717.83, 11,578.01 and 2,718.92 is: 4,078.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.83 : 11,578.01 = 2,718.92 : x
  2. Step 2: Convert to fraction form
    7,717.83/11,578.01 = 2,718.92/x
  3. Step 3: Cross multiply
    7,717.83x = 11,578.01 × 2,718.92
  4. Step 4: Simplify right side
    7,717.83x = 31,479,633.17
  5. Step 5: Solve for x
    x = 31,479,633.17/7,717.83
  6. Step 6: Final answer
    x = 4,078.82

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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.