Home / 3,765.48-5,643.18-1,455.72

Finding the Fourth Proportional to 3,765.48, 5,643.18 and 1,455.72

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Solution

The fourth proportional to 3,765.48, 5,643.18 and 1,455.72 is: 2,181.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765.48 : 5,643.18 = 1,455.72 : x
  2. Step 2: Convert to fraction form
    3,765.48/5,643.18 = 1,455.72/x
  3. Step 3: Cross multiply
    3,765.48x = 5,643.18 × 1,455.72
  4. Step 4: Simplify right side
    3,765.48x = 8,214,889.99
  5. Step 5: Solve for x
    x = 8,214,889.99/3,765.48
  6. Step 6: Final answer
    x = 2,181.63

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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.