Home / 3,260.60-4,889.70-1,069.40

Finding the Fourth Proportional to 3,260.60, 4,889.70 and 1,069.40

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Solution

The fourth proportional to 3,260.60, 4,889.70 and 1,069.40 is: 1,603.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.60 : 4,889.70 = 1,069.40 : x
  2. Step 2: Convert to fraction form
    3,260.60/4,889.70 = 1,069.40/x
  3. Step 3: Cross multiply
    3,260.60x = 4,889.70 × 1,069.40
  4. Step 4: Simplify right side
    3,260.60x = 5,229,045.18
  5. Step 5: Solve for x
    x = 5,229,045.18/3,260.60
  6. Step 6: Final answer
    x = 1,603.71

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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.