Home / 6,129.40-9,187.62-2,666.20

Finding the Fourth Proportional to 6,129.40, 9,187.62 and 2,666.20

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Solution

The fourth proportional to 6,129.40, 9,187.62 and 2,666.20 is: 3,996.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,129.40 : 9,187.62 = 2,666.20 : x
  2. Step 2: Convert to fraction form
    6,129.40/9,187.62 = 2,666.20/x
  3. Step 3: Cross multiply
    6,129.40x = 9,187.62 × 2,666.20
  4. Step 4: Simplify right side
    6,129.40x = 24,496,032.44
  5. Step 5: Solve for x
    x = 24,496,032.44/6,129.40
  6. Step 6: Final answer
    x = 3,996.48

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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.