Home / 4,258.06-6,387.39-1,138.06

Finding the Fourth Proportional to 4,258.06, 6,387.39 and 1,138.06

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Solution

The fourth proportional to 4,258.06, 6,387.39 and 1,138.06 is: 1,707.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,258.06 : 6,387.39 = 1,138.06 : x
  2. Step 2: Convert to fraction form
    4,258.06/6,387.39 = 1,138.06/x
  3. Step 3: Cross multiply
    4,258.06x = 6,387.39 × 1,138.06
  4. Step 4: Simplify right side
    4,258.06x = 7,269,233.06
  5. Step 5: Solve for x
    x = 7,269,233.06/4,258.06
  6. Step 6: Final answer
    x = 1,707.17

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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.