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Finding the Fourth Proportional to 2,812.34, 3,881.04 and 1,633.64

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Solution

The fourth proportional to 2,812.34, 3,881.04 and 1,633.64 is: 2,254.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.34 : 3,881.04 = 1,633.64 : x
  2. Step 2: Convert to fraction form
    2,812.34/3,881.04 = 1,633.64/x
  3. Step 3: Cross multiply
    2,812.34x = 3,881.04 × 1,633.64
  4. Step 4: Simplify right side
    2,812.34x = 6,340,222.19
  5. Step 5: Solve for x
    x = 6,340,222.19/2,812.34
  6. Step 6: Final answer
    x = 2,254.43

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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.