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Finding the Fourth Proportional to 3,937.50, 5,903.10 and 1,961.82

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Solution

The fourth proportional to 3,937.50, 5,903.10 and 1,961.82 is: 2,941.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.50 : 5,903.10 = 1,961.82 : x
  2. Step 2: Convert to fraction form
    3,937.50/5,903.10 = 1,961.82/x
  3. Step 3: Cross multiply
    3,937.50x = 5,903.10 × 1,961.82
  4. Step 4: Simplify right side
    3,937.50x = 11,580,819.64
  5. Step 5: Solve for x
    x = 11,580,819.64/3,937.50
  6. Step 6: Final answer
    x = 2,941.16

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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.