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Finding the Fourth Proportional to 2,616.10, 3,611.40 and 1,622.74

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Solution

The fourth proportional to 2,616.10, 3,611.40 and 1,622.74 is: 2,240.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,616.10 : 3,611.40 = 1,622.74 : x
  2. Step 2: Convert to fraction form
    2,616.10/3,611.40 = 1,622.74/x
  3. Step 3: Cross multiply
    2,616.10x = 3,611.40 × 1,622.74
  4. Step 4: Simplify right side
    2,616.10x = 5,860,363.24
  5. Step 5: Solve for x
    x = 5,860,363.24/2,616.10
  6. Step 6: Final answer
    x = 2,240.11

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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.