Home / 6,557.20-9,839.80-2,661.20

Finding the Fourth Proportional to 6,557.20, 9,839.80 and 2,661.20

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Solution

The fourth proportional to 6,557.20, 9,839.80 and 2,661.20 is: 3,993.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,557.20 : 9,839.80 = 2,661.20 : x
  2. Step 2: Convert to fraction form
    6,557.20/9,839.80 = 2,661.20/x
  3. Step 3: Cross multiply
    6,557.20x = 9,839.80 × 2,661.20
  4. Step 4: Simplify right side
    6,557.20x = 26,185,675.76
  5. Step 5: Solve for x
    x = 26,185,675.76/6,557.20
  6. Step 6: Final answer
    x = 3,993.42

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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.