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Finding the Fourth Proportional to 3,479.49, 4,801.95 and 2,153.97

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Solution

The fourth proportional to 3,479.49, 4,801.95 and 2,153.97 is: 2,972.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.49 : 4,801.95 = 2,153.97 : x
  2. Step 2: Convert to fraction form
    3,479.49/4,801.95 = 2,153.97/x
  3. Step 3: Cross multiply
    3,479.49x = 4,801.95 × 2,153.97
  4. Step 4: Simplify right side
    3,479.49x = 10,343,232.23
  5. Step 5: Solve for x
    x = 10,343,232.23/3,479.49
  6. Step 6: Final answer
    x = 2,972.63

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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.