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Finding the Fourth Proportional to 3,294.72, 4,545.36 and 1,968.12

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Solution

The fourth proportional to 3,294.72, 4,545.36 and 1,968.12 is: 2,715.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,294.72 : 4,545.36 = 1,968.12 : x
  2. Step 2: Convert to fraction form
    3,294.72/4,545.36 = 1,968.12/x
  3. Step 3: Cross multiply
    3,294.72x = 4,545.36 × 1,968.12
  4. Step 4: Simplify right side
    3,294.72x = 8,945,813.92
  5. Step 5: Solve for x
    x = 8,945,813.92/3,294.72
  6. Step 6: Final answer
    x = 2,715.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.