Home / 2,581.45-3,563.21-1,649.95

Finding the Fourth Proportional to 2,581.45, 3,563.21 and 1,649.95

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Solution

The fourth proportional to 2,581.45, 3,563.21 and 1,649.95 is: 2,277.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,581.45 : 3,563.21 = 1,649.95 : x
  2. Step 2: Convert to fraction form
    2,581.45/3,563.21 = 1,649.95/x
  3. Step 3: Cross multiply
    2,581.45x = 3,563.21 × 1,649.95
  4. Step 4: Simplify right side
    2,581.45x = 5,879,113.56
  5. Step 5: Solve for x
    x = 5,879,113.56/2,581.45
  6. Step 6: Final answer
    x = 2,277.45

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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.