Home / 5,318.10-7,975.80-2,195.55

Finding the Fourth Proportional to 5,318.10, 7,975.80 and 2,195.55

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Solution

The fourth proportional to 5,318.10, 7,975.80 and 2,195.55 is: 3,292.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.10 : 7,975.80 = 2,195.55 : x
  2. Step 2: Convert to fraction form
    5,318.10/7,975.80 = 2,195.55/x
  3. Step 3: Cross multiply
    5,318.10x = 7,975.80 × 2,195.55
  4. Step 4: Simplify right side
    5,318.10x = 17,511,267.69
  5. Step 5: Solve for x
    x = 17,511,267.69/5,318.10
  6. Step 6: Final answer
    x = 3,292.77

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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.