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Finding the Fourth Proportional to 3,363, 4,639.92 and 1,946.72

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Solution

The fourth proportional to 3,363, 4,639.92 and 1,946.72 is: 2,685.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,363 : 4,639.92 = 1,946.72 : x
  2. Step 2: Convert to fraction form
    3,363/4,639.92 = 1,946.72/x
  3. Step 3: Cross multiply
    3,363x = 4,639.92 × 1,946.72
  4. Step 4: Simplify right side
    3,363x = 9,032,601.86
  5. Step 5: Solve for x
    x = 9,032,601.86/3,363
  6. Step 6: Final answer
    x = 2,685.88

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1.5x scale

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.