Home / 5,217.69-7,200.36-2,859.87

Finding the Fourth Proportional to 5,217.69, 7,200.36 and 2,859.87

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Solution

The fourth proportional to 5,217.69, 7,200.36 and 2,859.87 is: 3,946.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.69 : 7,200.36 = 2,859.87 : x
  2. Step 2: Convert to fraction form
    5,217.69/7,200.36 = 2,859.87/x
  3. Step 3: Cross multiply
    5,217.69x = 7,200.36 × 2,859.87
  4. Step 4: Simplify right side
    5,217.69x = 20,592,093.55
  5. Step 5: Solve for x
    x = 20,592,093.55/5,217.69
  6. Step 6: Final answer
    x = 3,946.59

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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.