Home / 4,639.49-6,402.83-2,872.12

Finding the Fourth Proportional to 4,639.49, 6,402.83 and 2,872.12

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Solution

The fourth proportional to 4,639.49, 6,402.83 and 2,872.12 is: 3,963.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,639.49 : 6,402.83 = 2,872.12 : x
  2. Step 2: Convert to fraction form
    4,639.49/6,402.83 = 2,872.12/x
  3. Step 3: Cross multiply
    4,639.49x = 6,402.83 × 2,872.12
  4. Step 4: Simplify right side
    4,639.49x = 18,389,696.10
  5. Step 5: Solve for x
    x = 18,389,696.10/4,639.49
  6. Step 6: Final answer
    x = 3,963.73

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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.