Home / 2,649.37-3,973.51-1,087.85

Finding the Fourth Proportional to 2,649.37, 3,973.51 and 1,087.85

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Solution

The fourth proportional to 2,649.37, 3,973.51 and 1,087.85 is: 1,631.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.37 : 3,973.51 = 1,087.85 : x
  2. Step 2: Convert to fraction form
    2,649.37/3,973.51 = 1,087.85/x
  3. Step 3: Cross multiply
    2,649.37x = 3,973.51 × 1,087.85
  4. Step 4: Simplify right side
    2,649.37x = 4,322,582.85
  5. Step 5: Solve for x
    x = 4,322,582.85/2,649.37
  6. Step 6: Final answer
    x = 1,631.55

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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.