Home / 7,718.08-11,578.72-3,101.44

Finding the Fourth Proportional to 7,718.08, 11,578.72 and 3,101.44

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Solution

The fourth proportional to 7,718.08, 11,578.72 and 3,101.44 is: 4,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.08 : 11,578.72 = 3,101.44 : x
  2. Step 2: Convert to fraction form
    7,718.08/11,578.72 = 3,101.44/x
  3. Step 3: Cross multiply
    7,718.08x = 11,578.72 × 3,101.44
  4. Step 4: Simplify right side
    7,718.08x = 35,910,705.36
  5. Step 5: Solve for x
    x = 35,910,705.36/7,718.08
  6. Step 6: Final answer
    x = 4,652.80

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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.