Home / 5,217.91-7,200.71-2,860.00

Finding the Fourth Proportional to 5,217.91, 7,200.71 and 2,860.00

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Solution

The fourth proportional to 5,217.91, 7,200.71 and 2,860.00 is: 3,946.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.91 : 7,200.71 = 2,860.00 : x
  2. Step 2: Convert to fraction form
    5,217.91/7,200.71 = 2,860.00/x
  3. Step 3: Cross multiply
    5,217.91x = 7,200.71 × 2,860.00
  4. Step 4: Simplify right side
    5,217.91x = 20,594,012.60
  5. Step 5: Solve for x
    x = 20,594,012.60/5,217.91
  6. Step 6: Final answer
    x = 3,946.80

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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.