Home / 3,360.43-5,040.66-1,139.28

Finding the Fourth Proportional to 3,360.43, 5,040.66 and 1,139.28

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Solution

The fourth proportional to 3,360.43, 5,040.66 and 1,139.28 is: 1,708.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.43 : 5,040.66 = 1,139.28 : x
  2. Step 2: Convert to fraction form
    3,360.43/5,040.66 = 1,139.28/x
  3. Step 3: Cross multiply
    3,360.43x = 5,040.66 × 1,139.28
  4. Step 4: Simplify right side
    3,360.43x = 5,742,723.12
  5. Step 5: Solve for x
    x = 5,742,723.12/3,360.43
  6. Step 6: Final answer
    x = 1,708.93

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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.