Home / 7,107.15-10,666.80-3,164.48

Finding the Fourth Proportional to 7,107.15, 10,666.80 and 3,164.48

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Solution

The fourth proportional to 7,107.15, 10,666.80 and 3,164.48 is: 4,749.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,107.15 : 10,666.80 = 3,164.48 : x
  2. Step 2: Convert to fraction form
    7,107.15/10,666.80 = 3,164.48/x
  3. Step 3: Cross multiply
    7,107.15x = 10,666.80 × 3,164.48
  4. Step 4: Simplify right side
    7,107.15x = 33,754,821.93
  5. Step 5: Solve for x
    x = 33,754,821.93/7,107.15
  6. Step 6: Final answer
    x = 4,749.42

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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.