Home / 2,181.70-3,272.55-1,925.70

Finding the Fourth Proportional to 2,181.70, 3,272.55 and 1,925.70

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Solution

The fourth proportional to 2,181.70, 3,272.55 and 1,925.70 is: 2,888.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.70 : 3,272.55 = 1,925.70 : x
  2. Step 2: Convert to fraction form
    2,181.70/3,272.55 = 1,925.70/x
  3. Step 3: Cross multiply
    2,181.70x = 3,272.55 × 1,925.70
  4. Step 4: Simplify right side
    2,181.70x = 6,301,949.54
  5. Step 5: Solve for x
    x = 6,301,949.54/2,181.70
  6. Step 6: Final answer
    x = 2,888.55

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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.