Home / 6,513.62-9,771.45-2,130.05

Finding the Fourth Proportional to 6,513.62, 9,771.45 and 2,130.05

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Solution

The fourth proportional to 6,513.62, 9,771.45 and 2,130.05 is: 3,195.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.62 : 9,771.45 = 2,130.05 : x
  2. Step 2: Convert to fraction form
    6,513.62/9,771.45 = 2,130.05/x
  3. Step 3: Cross multiply
    6,513.62x = 9,771.45 × 2,130.05
  4. Step 4: Simplify right side
    6,513.62x = 20,813,641.54
  5. Step 5: Solve for x
    x = 20,813,641.54/6,513.62
  6. Step 6: Final answer
    x = 3,195.41

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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.