Home / 5,715.94-8,578.78-2,255.62

Finding the Fourth Proportional to 5,715.94, 8,578.78 and 2,255.62

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Solution

The fourth proportional to 5,715.94, 8,578.78 and 2,255.62 is: 3,385.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.94 : 8,578.78 = 2,255.62 : x
  2. Step 2: Convert to fraction form
    5,715.94/8,578.78 = 2,255.62/x
  3. Step 3: Cross multiply
    5,715.94x = 8,578.78 × 2,255.62
  4. Step 4: Simplify right side
    5,715.94x = 19,350,467.74
  5. Step 5: Solve for x
    x = 19,350,467.74/5,715.94
  6. Step 6: Final answer
    x = 3,385.35

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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.