Home / 7,724.50-10,659.79-4,187.73

Finding the Fourth Proportional to 7,724.50, 10,659.79 and 4,187.73

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Solution

The fourth proportional to 7,724.50, 10,659.79 and 4,187.73 is: 5,779.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724.50 : 10,659.79 = 4,187.73 : x
  2. Step 2: Convert to fraction form
    7,724.50/10,659.79 = 4,187.73/x
  3. Step 3: Cross multiply
    7,724.50x = 10,659.79 × 4,187.73
  4. Step 4: Simplify right side
    7,724.50x = 44,640,322.38
  5. Step 5: Solve for x
    x = 44,640,322.38/7,724.50
  6. Step 6: Final answer
    x = 5,779.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.