Home / 3,680.93-5,518.05-1,339.28

Finding the Fourth Proportional to 3,680.93, 5,518.05 and 1,339.28

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Solution

The fourth proportional to 3,680.93, 5,518.05 and 1,339.28 is: 2,007.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.93 : 5,518.05 = 1,339.28 : x
  2. Step 2: Convert to fraction form
    3,680.93/5,518.05 = 1,339.28/x
  3. Step 3: Cross multiply
    3,680.93x = 5,518.05 × 1,339.28
  4. Step 4: Simplify right side
    3,680.93x = 7,390,214.00
  5. Step 5: Solve for x
    x = 7,390,214.00/3,680.93
  6. Step 6: Final answer
    x = 2,007.70

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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.