Home / 3,388.30-4,675.64-1,971.88

Finding the Fourth Proportional to 3,388.30, 4,675.64 and 1,971.88

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Solution

The fourth proportional to 3,388.30, 4,675.64 and 1,971.88 is: 2,721.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.30 : 4,675.64 = 1,971.88 : x
  2. Step 2: Convert to fraction form
    3,388.30/4,675.64 = 1,971.88/x
  3. Step 3: Cross multiply
    3,388.30x = 4,675.64 × 1,971.88
  4. Step 4: Simplify right side
    3,388.30x = 9,219,801.00
  5. Step 5: Solve for x
    x = 9,219,801.00/3,388.30
  6. Step 6: Final answer
    x = 2,721.07

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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.