Home / 3,386.88-5,080.19-1,305.99

Finding the Fourth Proportional to 3,386.88, 5,080.19 and 1,305.99

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Solution

The fourth proportional to 3,386.88, 5,080.19 and 1,305.99 is: 1,958.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.88 : 5,080.19 = 1,305.99 : x
  2. Step 2: Convert to fraction form
    3,386.88/5,080.19 = 1,305.99/x
  3. Step 3: Cross multiply
    3,386.88x = 5,080.19 × 1,305.99
  4. Step 4: Simplify right side
    3,386.88x = 6,634,670.81
  5. Step 5: Solve for x
    x = 6,634,670.81/3,386.88
  6. Step 6: Final answer
    x = 1,958.93

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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.