Home / 7,220.31-10,834.79-3,116.31

Finding the Fourth Proportional to 7,220.31, 10,834.79 and 3,116.31

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Solution

The fourth proportional to 7,220.31, 10,834.79 and 3,116.31 is: 4,676.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.31 : 10,834.79 = 3,116.31 : x
  2. Step 2: Convert to fraction form
    7,220.31/10,834.79 = 3,116.31/x
  3. Step 3: Cross multiply
    7,220.31x = 10,834.79 × 3,116.31
  4. Step 4: Simplify right side
    7,220.31x = 33,764,564.42
  5. Step 5: Solve for x
    x = 33,764,564.42/7,220.31
  6. Step 6: Final answer
    x = 4,676.33

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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.