Home / 4,486.21-6,729.32-2,145.66

Finding the Fourth Proportional to 4,486.21, 6,729.32 and 2,145.66

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Solution

The fourth proportional to 4,486.21, 6,729.32 and 2,145.66 is: 3,218.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,486.21 : 6,729.32 = 2,145.66 : x
  2. Step 2: Convert to fraction form
    4,486.21/6,729.32 = 2,145.66/x
  3. Step 3: Cross multiply
    4,486.21x = 6,729.32 × 2,145.66
  4. Step 4: Simplify right side
    4,486.21x = 14,438,822.02
  5. Step 5: Solve for x
    x = 14,438,822.02/4,486.21
  6. Step 6: Final answer
    x = 3,218.49

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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.