Home / 3,181.95-4,775.15-2,143.93

Finding the Fourth Proportional to 3,181.95, 4,775.15 and 2,143.93

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Solution

The fourth proportional to 3,181.95, 4,775.15 and 2,143.93 is: 3,217.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.95 : 4,775.15 = 2,143.93 : x
  2. Step 2: Convert to fraction form
    3,181.95/4,775.15 = 2,143.93/x
  3. Step 3: Cross multiply
    3,181.95x = 4,775.15 × 2,143.93
  4. Step 4: Simplify right side
    3,181.95x = 10,237,587.34
  5. Step 5: Solve for x
    x = 10,237,587.34/3,181.95
  6. Step 6: Final answer
    x = 3,217.39

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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.