Home / 6,518.98-9,778.86-3,231.16

Finding the Fourth Proportional to 6,518.98, 9,778.86 and 3,231.16

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Solution

The fourth proportional to 6,518.98, 9,778.86 and 3,231.16 is: 4,846.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,518.98 : 9,778.86 = 3,231.16 : x
  2. Step 2: Convert to fraction form
    6,518.98/9,778.86 = 3,231.16/x
  3. Step 3: Cross multiply
    6,518.98x = 9,778.86 × 3,231.16
  4. Step 4: Simplify right side
    6,518.98x = 31,597,061.28
  5. Step 5: Solve for x
    x = 31,597,061.28/6,518.98
  6. Step 6: Final answer
    x = 4,846.93

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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.