Home / 6,621.96-9,928.13-3,110.16

Finding the Fourth Proportional to 6,621.96, 9,928.13 and 3,110.16

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Solution

The fourth proportional to 6,621.96, 9,928.13 and 3,110.16 is: 4,662.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.96 : 9,928.13 = 3,110.16 : x
  2. Step 2: Convert to fraction form
    6,621.96/9,928.13 = 3,110.16/x
  3. Step 3: Cross multiply
    6,621.96x = 9,928.13 × 3,110.16
  4. Step 4: Simplify right side
    6,621.96x = 30,878,072.80
  5. Step 5: Solve for x
    x = 30,878,072.80/6,621.96
  6. Step 6: Final answer
    x = 4,662.98

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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.