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Finding the Fourth Proportional to 6,542.91, 9,813.39 and 2,160.40

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Solution

The fourth proportional to 6,542.91, 9,813.39 and 2,160.40 is: 3,240.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,542.91 : 9,813.39 = 2,160.40 : x
  2. Step 2: Convert to fraction form
    6,542.91/9,813.39 = 2,160.40/x
  3. Step 3: Cross multiply
    6,542.91x = 9,813.39 × 2,160.40
  4. Step 4: Simplify right side
    6,542.91x = 21,200,847.76
  5. Step 5: Solve for x
    x = 21,200,847.76/6,542.91
  6. Step 6: Final answer
    x = 3,240.28

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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.