Home / 3,260.19-4,890.29-1,311.94

Finding the Fourth Proportional to 3,260.19, 4,890.29 and 1,311.94

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Solution

The fourth proportional to 3,260.19, 4,890.29 and 1,311.94 is: 1,967.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.19 : 4,890.29 = 1,311.94 : x
  2. Step 2: Convert to fraction form
    3,260.19/4,890.29 = 1,311.94/x
  3. Step 3: Cross multiply
    3,260.19x = 4,890.29 × 1,311.94
  4. Step 4: Simplify right side
    3,260.19x = 6,415,748.28
  5. Step 5: Solve for x
    x = 6,415,748.28/3,260.19
  6. Step 6: Final answer
    x = 1,967.91

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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.