Home / 5,715.88-8,567.55-2,942.70

Finding the Fourth Proportional to 5,715.88, 8,567.55 and 2,942.70

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Solution

The fourth proportional to 5,715.88, 8,567.55 and 2,942.70 is: 4,410.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.88 : 8,567.55 = 2,942.70 : x
  2. Step 2: Convert to fraction form
    5,715.88/8,567.55 = 2,942.70/x
  3. Step 3: Cross multiply
    5,715.88x = 8,567.55 × 2,942.70
  4. Step 4: Simplify right side
    5,715.88x = 25,211,731.33
  5. Step 5: Solve for x
    x = 25,211,731.33/5,715.88
  6. Step 6: Final answer
    x = 4,410.82

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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.