Home / 4,897.41-7,340.49-2,121.30

Finding the Fourth Proportional to 4,897.41, 7,340.49 and 2,121.30

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Solution

The fourth proportional to 4,897.41, 7,340.49 and 2,121.30 is: 3,179.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,897.41 : 7,340.49 = 2,121.30 : x
  2. Step 2: Convert to fraction form
    4,897.41/7,340.49 = 2,121.30/x
  3. Step 3: Cross multiply
    4,897.41x = 7,340.49 × 2,121.30
  4. Step 4: Simplify right side
    4,897.41x = 15,571,381.44
  5. Step 5: Solve for x
    x = 15,571,381.44/4,897.41
  6. Step 6: Final answer
    x = 3,179.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.