Home / 5,217.40-7,200.35-2,859.54

Finding the Fourth Proportional to 5,217.40, 7,200.35 and 2,859.54

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Solution

The fourth proportional to 5,217.40, 7,200.35 and 2,859.54 is: 3,946.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.40 : 7,200.35 = 2,859.54 : x
  2. Step 2: Convert to fraction form
    5,217.40/7,200.35 = 2,859.54/x
  3. Step 3: Cross multiply
    5,217.40x = 7,200.35 × 2,859.54
  4. Step 4: Simplify right side
    5,217.40x = 20,589,695.99
  5. Step 5: Solve for x
    x = 20,589,695.99/5,217.40
  6. Step 6: Final answer
    x = 3,946.35

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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.