Home / 7,724.08-11,587.72-3,107.44

Finding the Fourth Proportional to 7,724.08, 11,587.72 and 3,107.44

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Solution

The fourth proportional to 7,724.08, 11,587.72 and 3,107.44 is: 4,661.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724.08 : 11,587.72 = 3,107.44 : x
  2. Step 2: Convert to fraction form
    7,724.08/11,587.72 = 3,107.44/x
  3. Step 3: Cross multiply
    7,724.08x = 11,587.72 × 3,107.44
  4. Step 4: Simplify right side
    7,724.08x = 36,008,144.64
  5. Step 5: Solve for x
    x = 36,008,144.64/7,724.08
  6. Step 6: Final answer
    x = 4,661.80

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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.