Home / 5,217.18-7,199.64-2,859.30

Finding the Fourth Proportional to 5,217.18, 7,199.64 and 2,859.30

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Solution

The fourth proportional to 5,217.18, 7,199.64 and 2,859.30 is: 3,945.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.18 : 7,199.64 = 2,859.30 : x
  2. Step 2: Convert to fraction form
    5,217.18/7,199.64 = 2,859.30/x
  3. Step 3: Cross multiply
    5,217.18x = 7,199.64 × 2,859.30
  4. Step 4: Simplify right side
    5,217.18x = 20,585,930.65
  5. Step 5: Solve for x
    x = 20,585,930.65/5,217.18
  6. Step 6: Final answer
    x = 3,945.80

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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.