Home / 2,260.55-3,390.72-943.80

Finding the Fourth Proportional to 2,260.55, 3,390.72 and 943.80

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Solution

The fourth proportional to 2,260.55, 3,390.72 and 943.80 is: 1,415.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,260.55 : 3,390.72 = 943.80 : x
  2. Step 2: Convert to fraction form
    2,260.55/3,390.72 = 943.80/x
  3. Step 3: Cross multiply
    2,260.55x = 3,390.72 × 943.80
  4. Step 4: Simplify right side
    2,260.55x = 3,200,145.28
  5. Step 5: Solve for x
    x = 3,200,145.28/2,260.55
  6. Step 6: Final answer
    x = 1,415.65

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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.