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Finding the Fourth Proportional to 1,893.46, 2,613.12 and 1,054.20

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Solution

The fourth proportional to 1,893.46, 2,613.12 and 1,054.20 is: 1,454.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893.46 : 2,613.12 = 1,054.20 : x
  2. Step 2: Convert to fraction form
    1,893.46/2,613.12 = 1,054.20/x
  3. Step 3: Cross multiply
    1,893.46x = 2,613.12 × 1,054.20
  4. Step 4: Simplify right side
    1,893.46x = 2,754,760.69
  5. Step 5: Solve for x
    x = 2,754,760.69/1,893.46
  6. Step 6: Final answer
    x = 1,454.88

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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.