Home / 1,850.45-2,549.22-1,289.90

Finding the Fourth Proportional to 1,850.45, 2,549.22 and 1,289.90

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Solution

The fourth proportional to 1,850.45, 2,549.22 and 1,289.90 is: 1,777.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.45 : 2,549.22 = 1,289.90 : x
  2. Step 2: Convert to fraction form
    1,850.45/2,549.22 = 1,289.90/x
  3. Step 3: Cross multiply
    1,850.45x = 2,549.22 × 1,289.90
  4. Step 4: Simplify right side
    1,850.45x = 3,288,240.50
  5. Step 5: Solve for x
    x = 3,288,240.50/1,850.45
  6. Step 6: Final answer
    x = 1,777.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.