Home / 3,873.40-5,810.32-1,099.85

Finding the Fourth Proportional to 3,873.40, 5,810.32 and 1,099.85

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Solution

The fourth proportional to 3,873.40, 5,810.32 and 1,099.85 is: 1,649.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,873.40 : 5,810.32 = 1,099.85 : x
  2. Step 2: Convert to fraction form
    3,873.40/5,810.32 = 1,099.85/x
  3. Step 3: Cross multiply
    3,873.40x = 5,810.32 × 1,099.85
  4. Step 4: Simplify right side
    3,873.40x = 6,390,480.45
  5. Step 5: Solve for x
    x = 6,390,480.45/3,873.40
  6. Step 6: Final answer
    x = 1,649.84

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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.