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Finding the Fourth Proportional to 6,813.50, 10,220.25 and 2,196.50

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Solution

The fourth proportional to 6,813.50, 10,220.25 and 2,196.50 is: 3,294.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,813.50 : 10,220.25 = 2,196.50 : x
  2. Step 2: Convert to fraction form
    6,813.50/10,220.25 = 2,196.50/x
  3. Step 3: Cross multiply
    6,813.50x = 10,220.25 × 2,196.50
  4. Step 4: Simplify right side
    6,813.50x = 22,448,779.13
  5. Step 5: Solve for x
    x = 22,448,779.13/6,813.50
  6. Step 6: Final answer
    x = 3,294.75

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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.