Home / 3,388.42-4,675.49-1,972.34

Finding the Fourth Proportional to 3,388.42, 4,675.49 and 1,972.34

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Solution

The fourth proportional to 3,388.42, 4,675.49 and 1,972.34 is: 2,721.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.42 : 4,675.49 = 1,972.34 : x
  2. Step 2: Convert to fraction form
    3,388.42/4,675.49 = 1,972.34/x
  3. Step 3: Cross multiply
    3,388.42x = 4,675.49 × 1,972.34
  4. Step 4: Simplify right side
    3,388.42x = 9,221,646.08
  5. Step 5: Solve for x
    x = 9,221,646.08/3,388.42
  6. Step 6: Final answer
    x = 2,721.52

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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.