Home / 3,604.56-5,406.45-1,139.40

Finding the Fourth Proportional to 3,604.56, 5,406.45 and 1,139.40

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Solution

The fourth proportional to 3,604.56, 5,406.45 and 1,139.40 is: 1,708.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604.56 : 5,406.45 = 1,139.40 : x
  2. Step 2: Convert to fraction form
    3,604.56/5,406.45 = 1,139.40/x
  3. Step 3: Cross multiply
    3,604.56x = 5,406.45 × 1,139.40
  4. Step 4: Simplify right side
    3,604.56x = 6,160,109.13
  5. Step 5: Solve for x
    x = 6,160,109.13/3,604.56
  6. Step 6: Final answer
    x = 1,708.98

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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.