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Finding the Fourth Proportional to 3,407.82, 5,106.78 and 1,943.88

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Solution

The fourth proportional to 3,407.82, 5,106.78 and 1,943.88 is: 2,913.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,407.82 : 5,106.78 = 1,943.88 : x
  2. Step 2: Convert to fraction form
    3,407.82/5,106.78 = 1,943.88/x
  3. Step 3: Cross multiply
    3,407.82x = 5,106.78 × 1,943.88
  4. Step 4: Simplify right side
    3,407.82x = 9,926,967.51
  5. Step 5: Solve for x
    x = 9,926,967.51/3,407.82
  6. Step 6: Final answer
    x = 2,913.00

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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.