Home / 3,927.21-5,419.29-2,248.63

Finding the Fourth Proportional to 3,927.21, 5,419.29 and 2,248.63

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Solution

The fourth proportional to 3,927.21, 5,419.29 and 2,248.63 is: 3,102.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.21 : 5,419.29 = 2,248.63 : x
  2. Step 2: Convert to fraction form
    3,927.21/5,419.29 = 2,248.63/x
  3. Step 3: Cross multiply
    3,927.21x = 5,419.29 × 2,248.63
  4. Step 4: Simplify right side
    3,927.21x = 12,185,978.07
  5. Step 5: Solve for x
    x = 12,185,978.07/3,927.21
  6. Step 6: Final answer
    x = 3,102.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.