Home / 2,750.37-4,126.77-1,289.40

Finding the Fourth Proportional to 2,750.37, 4,126.77 and 1,289.40

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Solution

The fourth proportional to 2,750.37, 4,126.77 and 1,289.40 is: 1,934.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.37 : 4,126.77 = 1,289.40 : x
  2. Step 2: Convert to fraction form
    2,750.37/4,126.77 = 1,289.40/x
  3. Step 3: Cross multiply
    2,750.37x = 4,126.77 × 1,289.40
  4. Step 4: Simplify right side
    2,750.37x = 5,321,057.24
  5. Step 5: Solve for x
    x = 5,321,057.24/2,750.37
  6. Step 6: Final answer
    x = 1,934.67

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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.