Home / 2,859.41-4,286.21-1,214.91

Finding the Fourth Proportional to 2,859.41, 4,286.21 and 1,214.91

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Solution

The fourth proportional to 2,859.41, 4,286.21 and 1,214.91 is: 1,821.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.41 : 4,286.21 = 1,214.91 : x
  2. Step 2: Convert to fraction form
    2,859.41/4,286.21 = 1,214.91/x
  3. Step 3: Cross multiply
    2,859.41x = 4,286.21 × 1,214.91
  4. Step 4: Simplify right side
    2,859.41x = 5,207,353.32
  5. Step 5: Solve for x
    x = 5,207,353.32/2,859.41
  6. Step 6: Final answer
    x = 1,821.13

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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.