Home / 4,286.12-6,429.69-1,512.22

Finding the Fourth Proportional to 4,286.12, 6,429.69 and 1,512.22

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Solution

The fourth proportional to 4,286.12, 6,429.69 and 1,512.22 is: 2,268.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286.12 : 6,429.69 = 1,512.22 : x
  2. Step 2: Convert to fraction form
    4,286.12/6,429.69 = 1,512.22/x
  3. Step 3: Cross multiply
    4,286.12x = 6,429.69 × 1,512.22
  4. Step 4: Simplify right side
    4,286.12x = 9,723,071.77
  5. Step 5: Solve for x
    x = 9,723,071.77/4,286.12
  6. Step 6: Final answer
    x = 2,268.50

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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.