Home / 3,851.21-5,776.80-2,974.98

Finding the Fourth Proportional to 3,851.21, 5,776.80 and 2,974.98

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Solution

The fourth proportional to 3,851.21, 5,776.80 and 2,974.98 is: 4,462.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.21 : 5,776.80 = 2,974.98 : x
  2. Step 2: Convert to fraction form
    3,851.21/5,776.80 = 2,974.98/x
  3. Step 3: Cross multiply
    3,851.21x = 5,776.80 × 2,974.98
  4. Step 4: Simplify right side
    3,851.21x = 17,185,864.46
  5. Step 5: Solve for x
    x = 17,185,864.46/3,851.21
  6. Step 6: Final answer
    x = 4,462.46

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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.