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Finding the Fourth Proportional to 3,952.12, 5,927.06 and 1,486.72

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Solution

The fourth proportional to 3,952.12, 5,927.06 and 1,486.72 is: 2,229.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,952.12 : 5,927.06 = 1,486.72 : x
  2. Step 2: Convert to fraction form
    3,952.12/5,927.06 = 1,486.72/x
  3. Step 3: Cross multiply
    3,952.12x = 5,927.06 × 1,486.72
  4. Step 4: Simplify right side
    3,952.12x = 8,811,878.64
  5. Step 5: Solve for x
    x = 8,811,878.64/3,952.12
  6. Step 6: Final answer
    x = 2,229.66

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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.