Home / 3,021.25-4,532.28-1,290.28

Finding the Fourth Proportional to 3,021.25, 4,532.28 and 1,290.28

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Solution

The fourth proportional to 3,021.25, 4,532.28 and 1,290.28 is: 1,935.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.25 : 4,532.28 = 1,290.28 : x
  2. Step 2: Convert to fraction form
    3,021.25/4,532.28 = 1,290.28/x
  3. Step 3: Cross multiply
    3,021.25x = 4,532.28 × 1,290.28
  4. Step 4: Simplify right side
    3,021.25x = 5,847,910.24
  5. Step 5: Solve for x
    x = 5,847,910.24/3,021.25
  6. Step 6: Final answer
    x = 1,935.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.