Home / 3,388.12-4,675.28-1,972.00

Finding the Fourth Proportional to 3,388.12, 4,675.28 and 1,972.00

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Solution

The fourth proportional to 3,388.12, 4,675.28 and 1,972.00 is: 2,721.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.12 : 4,675.28 = 1,972.00 : x
  2. Step 2: Convert to fraction form
    3,388.12/4,675.28 = 1,972.00/x
  3. Step 3: Cross multiply
    3,388.12x = 4,675.28 × 1,972.00
  4. Step 4: Simplify right side
    3,388.12x = 9,219,623.85
  5. Step 5: Solve for x
    x = 9,219,623.85/3,388.12
  6. Step 6: Final answer
    x = 2,721.16

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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.