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Finding the Fourth Proportional to 2,543.66, 3,489.24 and 2,520.62

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Solution

The fourth proportional to 2,543.66, 3,489.24 and 2,520.62 is: 3,457.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543.66 : 3,489.24 = 2,520.62 : x
  2. Step 2: Convert to fraction form
    2,543.66/3,489.24 = 2,520.62/x
  3. Step 3: Cross multiply
    2,543.66x = 3,489.24 × 2,520.62
  4. Step 4: Simplify right side
    2,543.66x = 8,795,048.13
  5. Step 5: Solve for x
    x = 8,795,048.13/2,543.66
  6. Step 6: Final answer
    x = 3,457.64

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.