Home / 3,086.06-4,258.80-1,688.81

Finding the Fourth Proportional to 3,086.06, 4,258.80 and 1,688.81

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Solution

The fourth proportional to 3,086.06, 4,258.80 and 1,688.81 is: 2,330.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.06 : 4,258.80 = 1,688.81 : x
  2. Step 2: Convert to fraction form
    3,086.06/4,258.80 = 1,688.81/x
  3. Step 3: Cross multiply
    3,086.06x = 4,258.80 × 1,688.81
  4. Step 4: Simplify right side
    3,086.06x = 7,192,304.03
  5. Step 5: Solve for x
    x = 7,192,304.03/3,086.06
  6. Step 6: Final answer
    x = 2,330.58

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.