Home / 2,966.07-4,092.81-1,639.80

Finding the Fourth Proportional to 2,966.07, 4,092.81 and 1,639.80

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Solution

The fourth proportional to 2,966.07, 4,092.81 and 1,639.80 is: 2,262.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,966.07 : 4,092.81 = 1,639.80 : x
  2. Step 2: Convert to fraction form
    2,966.07/4,092.81 = 1,639.80/x
  3. Step 3: Cross multiply
    2,966.07x = 4,092.81 × 1,639.80
  4. Step 4: Simplify right side
    2,966.07x = 6,711,389.84
  5. Step 5: Solve for x
    x = 6,711,389.84/2,966.07
  6. Step 6: Final answer
    x = 2,262.72

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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.