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Finding the Fourth Proportional to 3,392.81, 4,681.23 and 1,957.61

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Solution

The fourth proportional to 3,392.81, 4,681.23 and 1,957.61 is: 2,701.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.81 : 4,681.23 = 1,957.61 : x
  2. Step 2: Convert to fraction form
    3,392.81/4,681.23 = 1,957.61/x
  3. Step 3: Cross multiply
    3,392.81x = 4,681.23 × 1,957.61
  4. Step 4: Simplify right side
    3,392.81x = 9,164,022.66
  5. Step 5: Solve for x
    x = 9,164,022.66/3,392.81
  6. Step 6: Final answer
    x = 2,701.01

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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.