Home / 5,718.55-7,891.36-3,200.76

Finding the Fourth Proportional to 5,718.55, 7,891.36 and 3,200.76

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Solution

The fourth proportional to 5,718.55, 7,891.36 and 3,200.76 is: 4,416.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718.55 : 7,891.36 = 3,200.76 : x
  2. Step 2: Convert to fraction form
    5,718.55/7,891.36 = 3,200.76/x
  3. Step 3: Cross multiply
    5,718.55x = 7,891.36 × 3,200.76
  4. Step 4: Simplify right side
    5,718.55x = 25,258,333.43
  5. Step 5: Solve for x
    x = 25,258,333.43/5,718.55
  6. Step 6: Final answer
    x = 4,416.92

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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.