Home / 1,636.48-2,455.26-1,081.50

Finding the Fourth Proportional to 1,636.48, 2,455.26 and 1,081.50

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Solution

The fourth proportional to 1,636.48, 2,455.26 and 1,081.50 is: 1,622.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636.48 : 2,455.26 = 1,081.50 : x
  2. Step 2: Convert to fraction form
    1,636.48/2,455.26 = 1,081.50/x
  3. Step 3: Cross multiply
    1,636.48x = 2,455.26 × 1,081.50
  4. Step 4: Simplify right side
    1,636.48x = 2,655,363.69
  5. Step 5: Solve for x
    x = 2,655,363.69/1,636.48
  6. Step 6: Final answer
    x = 1,622.61

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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.