Home / 7,116.28-10,676.70-3,219.64

Finding the Fourth Proportional to 7,116.28, 10,676.70 and 3,219.64

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Solution

The fourth proportional to 7,116.28, 10,676.70 and 3,219.64 is: 4,830.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,116.28 : 10,676.70 = 3,219.64 : x
  2. Step 2: Convert to fraction form
    7,116.28/10,676.70 = 3,219.64/x
  3. Step 3: Cross multiply
    7,116.28x = 10,676.70 × 3,219.64
  4. Step 4: Simplify right side
    7,116.28x = 34,375,130.39
  5. Step 5: Solve for x
    x = 34,375,130.39/7,116.28
  6. Step 6: Final answer
    x = 4,830.49

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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.