Home / 3,290.04-4,539.82-2,112.71

Finding the Fourth Proportional to 3,290.04, 4,539.82 and 2,112.71

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Solution

The fourth proportional to 3,290.04, 4,539.82 and 2,112.71 is: 2,915.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.04 : 4,539.82 = 2,112.71 : x
  2. Step 2: Convert to fraction form
    3,290.04/4,539.82 = 2,112.71/x
  3. Step 3: Cross multiply
    3,290.04x = 4,539.82 × 2,112.71
  4. Step 4: Simplify right side
    3,290.04x = 9,591,311.76
  5. Step 5: Solve for x
    x = 9,591,311.76/3,290.04
  6. Step 6: Final answer
    x = 2,915.25

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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.