Home / 3,486.41-5,229.50-1,021.28

Finding the Fourth Proportional to 3,486.41, 5,229.50 and 1,021.28

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Solution

The fourth proportional to 3,486.41, 5,229.50 and 1,021.28 is: 1,531.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.41 : 5,229.50 = 1,021.28 : x
  2. Step 2: Convert to fraction form
    3,486.41/5,229.50 = 1,021.28/x
  3. Step 3: Cross multiply
    3,486.41x = 5,229.50 × 1,021.28
  4. Step 4: Simplify right side
    3,486.41x = 5,340,752.51
  5. Step 5: Solve for x
    x = 5,340,752.51/3,486.41
  6. Step 6: Final answer
    x = 1,531.88

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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.