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Finding the Fourth Proportional to 2,892.10, 4,334.10 and 2,543.80

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Solution

The fourth proportional to 2,892.10, 4,334.10 and 2,543.80 is: 3,812.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,892.10 : 4,334.10 = 2,543.80 : x
  2. Step 2: Convert to fraction form
    2,892.10/4,334.10 = 2,543.80/x
  3. Step 3: Cross multiply
    2,892.10x = 4,334.10 × 2,543.80
  4. Step 4: Simplify right side
    2,892.10x = 11,025,083.58
  5. Step 5: Solve for x
    x = 11,025,083.58/2,892.10
  6. Step 6: Final answer
    x = 3,812.14

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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.