Home / 6,675.88-10,012.20-2,780.32

Finding the Fourth Proportional to 6,675.88, 10,012.20 and 2,780.32

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Solution

The fourth proportional to 6,675.88, 10,012.20 and 2,780.32 is: 4,169.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,675.88 : 10,012.20 = 2,780.32 : x
  2. Step 2: Convert to fraction form
    6,675.88/10,012.20 = 2,780.32/x
  3. Step 3: Cross multiply
    6,675.88x = 10,012.20 × 2,780.32
  4. Step 4: Simplify right side
    6,675.88x = 27,837,119.90
  5. Step 5: Solve for x
    x = 27,837,119.90/6,675.88
  6. Step 6: Final answer
    x = 4,169.81

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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.