Home / 3,388.45-4,675.38-1,972.36

Finding the Fourth Proportional to 3,388.45, 4,675.38 and 1,972.36

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Solution

The fourth proportional to 3,388.45, 4,675.38 and 1,972.36 is: 2,721.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.45 : 4,675.38 = 1,972.36 : x
  2. Step 2: Convert to fraction form
    3,388.45/4,675.38 = 1,972.36/x
  3. Step 3: Cross multiply
    3,388.45x = 4,675.38 × 1,972.36
  4. Step 4: Simplify right side
    3,388.45x = 9,221,532.50
  5. Step 5: Solve for x
    x = 9,221,532.50/3,388.45
  6. Step 6: Final answer
    x = 2,721.46

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1.5x scale

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.