Home / 6,720.15-10,080.25-2,040.20

Finding the Fourth Proportional to 6,720.15, 10,080.25 and 2,040.20

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Solution

The fourth proportional to 6,720.15, 10,080.25 and 2,040.20 is: 3,060.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.15 : 10,080.25 = 2,040.20 : x
  2. Step 2: Convert to fraction form
    6,720.15/10,080.25 = 2,040.20/x
  3. Step 3: Cross multiply
    6,720.15x = 10,080.25 × 2,040.20
  4. Step 4: Simplify right side
    6,720.15x = 20,565,726.05
  5. Step 5: Solve for x
    x = 20,565,726.05/6,720.15
  6. Step 6: Final answer
    x = 3,060.31

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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.