Home / 5,515.68-8,270.28-2,228.88

Finding the Fourth Proportional to 5,515.68, 8,270.28 and 2,228.88

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Solution

The fourth proportional to 5,515.68, 8,270.28 and 2,228.88 is: 3,342.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.68 : 8,270.28 = 2,228.88 : x
  2. Step 2: Convert to fraction form
    5,515.68/8,270.28 = 2,228.88/x
  3. Step 3: Cross multiply
    5,515.68x = 8,270.28 × 2,228.88
  4. Step 4: Simplify right side
    5,515.68x = 18,433,461.69
  5. Step 5: Solve for x
    x = 18,433,461.69/5,515.68
  6. Step 6: Final answer
    x = 3,342.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.