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Finding the Fourth Proportional to 2,881.93, 4,321.28 and 1,841.28

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Solution

The fourth proportional to 2,881.93, 4,321.28 and 1,841.28 is: 2,760.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.93 : 4,321.28 = 1,841.28 : x
  2. Step 2: Convert to fraction form
    2,881.93/4,321.28 = 1,841.28/x
  3. Step 3: Cross multiply
    2,881.93x = 4,321.28 × 1,841.28
  4. Step 4: Simplify right side
    2,881.93x = 7,956,699.14
  5. Step 5: Solve for x
    x = 7,956,699.14/2,881.93
  6. Step 6: Final answer
    x = 2,760.89

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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.