Home / 3,604.30-5,406.55-1,139.06

Finding the Fourth Proportional to 3,604.30, 5,406.55 and 1,139.06

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Solution

The fourth proportional to 3,604.30, 5,406.55 and 1,139.06 is: 1,708.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604.30 : 5,406.55 = 1,139.06 : x
  2. Step 2: Convert to fraction form
    3,604.30/5,406.55 = 1,139.06/x
  3. Step 3: Cross multiply
    3,604.30x = 5,406.55 × 1,139.06
  4. Step 4: Simplify right side
    3,604.30x = 6,158,395.51
  5. Step 5: Solve for x
    x = 6,158,395.51/3,604.30
  6. Step 6: Final answer
    x = 1,708.63

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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.