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Finding the Fourth Proportional to 2,684.53, 3,705.57 and 1,622.89

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Solution

The fourth proportional to 2,684.53, 3,705.57 and 1,622.89 is: 2,240.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,684.53 : 3,705.57 = 1,622.89 : x
  2. Step 2: Convert to fraction form
    2,684.53/3,705.57 = 1,622.89/x
  3. Step 3: Cross multiply
    2,684.53x = 3,705.57 × 1,622.89
  4. Step 4: Simplify right side
    2,684.53x = 6,013,705.86
  5. Step 5: Solve for x
    x = 6,013,705.86/2,684.53
  6. Step 6: Final answer
    x = 2,240.14

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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.