Home / 3,370.09-4,650.78-1,972.84

Finding the Fourth Proportional to 3,370.09, 4,650.78 and 1,972.84

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Solution

The fourth proportional to 3,370.09, 4,650.78 and 1,972.84 is: 2,722.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,370.09 : 4,650.78 = 1,972.84 : x
  2. Step 2: Convert to fraction form
    3,370.09/4,650.78 = 1,972.84/x
  3. Step 3: Cross multiply
    3,370.09x = 4,650.78 × 1,972.84
  4. Step 4: Simplify right side
    3,370.09x = 9,175,244.82
  5. Step 5: Solve for x
    x = 9,175,244.82/3,370.09
  6. Step 6: Final answer
    x = 2,722.55

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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.