Home / 2,181.40-3,272.10-1,853.35

Finding the Fourth Proportional to 2,181.40, 3,272.10 and 1,853.35

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Solution

The fourth proportional to 2,181.40, 3,272.10 and 1,853.35 is: 2,780.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.40 : 3,272.10 = 1,853.35 : x
  2. Step 2: Convert to fraction form
    2,181.40/3,272.10 = 1,853.35/x
  3. Step 3: Cross multiply
    2,181.40x = 3,272.10 × 1,853.35
  4. Step 4: Simplify right side
    2,181.40x = 6,064,346.54
  5. Step 5: Solve for x
    x = 6,064,346.54/2,181.40
  6. Step 6: Final answer
    x = 2,780.03

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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.