Home / 3,220.75-4,445.06-1,894.45

Finding the Fourth Proportional to 3,220.75, 4,445.06 and 1,894.45

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Solution

The fourth proportional to 3,220.75, 4,445.06 and 1,894.45 is: 2,614.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.75 : 4,445.06 = 1,894.45 : x
  2. Step 2: Convert to fraction form
    3,220.75/4,445.06 = 1,894.45/x
  3. Step 3: Cross multiply
    3,220.75x = 4,445.06 × 1,894.45
  4. Step 4: Simplify right side
    3,220.75x = 8,420,943.92
  5. Step 5: Solve for x
    x = 8,420,943.92/3,220.75
  6. Step 6: Final answer
    x = 2,614.59

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Half scale
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Double scale
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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.