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Finding the Fourth Proportional to 2,084.67, 3,126.96 and 545.67

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Solution

The fourth proportional to 2,084.67, 3,126.96 and 545.67 is: 818.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,084.67 : 3,126.96 = 545.67 : x
  2. Step 2: Convert to fraction form
    2,084.67/3,126.96 = 545.67/x
  3. Step 3: Cross multiply
    2,084.67x = 3,126.96 × 545.67
  4. Step 4: Simplify right side
    2,084.67x = 1,706,288.26
  5. Step 5: Solve for x
    x = 1,706,288.26/2,084.67
  6. Step 6: Final answer
    x = 818.49

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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.