Home / 3,427.80-4,731.18-2,031

Finding the Fourth Proportional to 3,427.80, 4,731.18 and 2,031

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Solution

The fourth proportional to 3,427.80, 4,731.18 and 2,031 is: 2,803.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.80 : 4,731.18 = 2,031 : x
  2. Step 2: Convert to fraction form
    3,427.80/4,731.18 = 2,031/x
  3. Step 3: Cross multiply
    3,427.80x = 4,731.18 × 2,031
  4. Step 4: Simplify right side
    3,427.80x = 9,609,026.58
  5. Step 5: Solve for x
    x = 9,609,026.58/3,427.80
  6. Step 6: Final answer
    x = 2,803.26

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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.