Home / 4,545.20-6,809.70-4,274.12

Finding the Fourth Proportional to 4,545.20, 6,809.70 and 4,274.12

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Solution

The fourth proportional to 4,545.20, 6,809.70 and 4,274.12 is: 6,403.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,545.20 : 6,809.70 = 4,274.12 : x
  2. Step 2: Convert to fraction form
    4,545.20/6,809.70 = 4,274.12/x
  3. Step 3: Cross multiply
    4,545.20x = 6,809.70 × 4,274.12
  4. Step 4: Simplify right side
    4,545.20x = 29,105,474.96
  5. Step 5: Solve for x
    x = 29,105,474.96/4,545.20
  6. Step 6: Final answer
    x = 6,403.56

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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.