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Finding the Fourth Proportional to 3,937.94, 5,907.10 and 1,305.69

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Solution

The fourth proportional to 3,937.94, 5,907.10 and 1,305.69 is: 1,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.94 : 5,907.10 = 1,305.69 : x
  2. Step 2: Convert to fraction form
    3,937.94/5,907.10 = 1,305.69/x
  3. Step 3: Cross multiply
    3,937.94x = 5,907.10 × 1,305.69
  4. Step 4: Simplify right side
    3,937.94x = 7,712,841.40
  5. Step 5: Solve for x
    x = 7,712,841.40/3,937.94
  6. Step 6: Final answer
    x = 1,958.60

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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.