Home / 3,455.20-5,181.28-1,263.36

Finding the Fourth Proportional to 3,455.20, 5,181.28 and 1,263.36

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Solution

The fourth proportional to 3,455.20, 5,181.28 and 1,263.36 is: 1,894.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.20 : 5,181.28 = 1,263.36 : x
  2. Step 2: Convert to fraction form
    3,455.20/5,181.28 = 1,263.36/x
  3. Step 3: Cross multiply
    3,455.20x = 5,181.28 × 1,263.36
  4. Step 4: Simplify right side
    3,455.20x = 6,545,821.90
  5. Step 5: Solve for x
    x = 6,545,821.90/3,455.20
  6. Step 6: Final answer
    x = 1,894.48

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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.