Home / 7,228.20-10,817.10-4,308.60

Finding the Fourth Proportional to 7,228.20, 10,817.10 and 4,308.60

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Solution

The fourth proportional to 7,228.20, 10,817.10 and 4,308.60 is: 6,447.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,228.20 : 10,817.10 = 4,308.60 : x
  2. Step 2: Convert to fraction form
    7,228.20/10,817.10 = 4,308.60/x
  3. Step 3: Cross multiply
    7,228.20x = 10,817.10 × 4,308.60
  4. Step 4: Simplify right side
    7,228.20x = 46,606,557.06
  5. Step 5: Solve for x
    x = 46,606,557.06/7,228.20
  6. Step 6: Final answer
    x = 6,447.88

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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.