Home / 5,316.54-7,975.37-2,196.78

Finding the Fourth Proportional to 5,316.54, 7,975.37 and 2,196.78

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Solution

The fourth proportional to 5,316.54, 7,975.37 and 2,196.78 is: 3,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.54 : 7,975.37 = 2,196.78 : x
  2. Step 2: Convert to fraction form
    5,316.54/7,975.37 = 2,196.78/x
  3. Step 3: Cross multiply
    5,316.54x = 7,975.37 × 2,196.78
  4. Step 4: Simplify right side
    5,316.54x = 17,520,138.80
  5. Step 5: Solve for x
    x = 17,520,138.80/5,316.54
  6. Step 6: Final answer
    x = 3,295.40

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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.