Home / 2,185.66-3,278.35-1,455.67

Finding the Fourth Proportional to 2,185.66, 3,278.35 and 1,455.67

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Solution

The fourth proportional to 2,185.66, 3,278.35 and 1,455.67 is: 2,183.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185.66 : 3,278.35 = 1,455.67 : x
  2. Step 2: Convert to fraction form
    2,185.66/3,278.35 = 1,455.67/x
  3. Step 3: Cross multiply
    2,185.66x = 3,278.35 × 1,455.67
  4. Step 4: Simplify right side
    2,185.66x = 4,772,195.74
  5. Step 5: Solve for x
    x = 4,772,195.74/2,185.66
  6. Step 6: Final answer
    x = 2,183.41

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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.