Home / 4,286.06-6,428.13-1,208.30

Finding the Fourth Proportional to 4,286.06, 6,428.13 and 1,208.30

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Solution

The fourth proportional to 4,286.06, 6,428.13 and 1,208.30 is: 1,812.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,286.06 : 6,428.13 = 1,208.30 : x
  2. Step 2: Convert to fraction form
    4,286.06/6,428.13 = 1,208.30/x
  3. Step 3: Cross multiply
    4,286.06x = 6,428.13 × 1,208.30
  4. Step 4: Simplify right side
    4,286.06x = 7,767,109.48
  5. Step 5: Solve for x
    x = 7,767,109.48/4,286.06
  6. Step 6: Final answer
    x = 1,812.18

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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.