Home / 7,772.09-10,727.50-4,790.38

Finding the Fourth Proportional to 7,772.09, 10,727.50 and 4,790.38

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Solution

The fourth proportional to 7,772.09, 10,727.50 and 4,790.38 is: 6,611.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.09 : 10,727.50 = 4,790.38 : x
  2. Step 2: Convert to fraction form
    7,772.09/10,727.50 = 4,790.38/x
  3. Step 3: Cross multiply
    7,772.09x = 10,727.50 × 4,790.38
  4. Step 4: Simplify right side
    7,772.09x = 51,388,801.45
  5. Step 5: Solve for x
    x = 51,388,801.45/7,772.09
  6. Step 6: Final answer
    x = 6,611.97

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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.