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Finding the Fourth Proportional to 4,930.50, 7,392.11 and 1,641.63

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Solution

The fourth proportional to 4,930.50, 7,392.11 and 1,641.63 is: 2,461.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,930.50 : 7,392.11 = 1,641.63 : x
  2. Step 2: Convert to fraction form
    4,930.50/7,392.11 = 1,641.63/x
  3. Step 3: Cross multiply
    4,930.50x = 7,392.11 × 1,641.63
  4. Step 4: Simplify right side
    4,930.50x = 12,135,101.33
  5. Step 5: Solve for x
    x = 12,135,101.33/4,930.50
  6. Step 6: Final answer
    x = 2,461.23

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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.