Home / 1,636.49-2,257.39-1,076.76

Finding the Fourth Proportional to 1,636.49, 2,257.39 and 1,076.76

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Solution

The fourth proportional to 1,636.49, 2,257.39 and 1,076.76 is: 1,485.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636.49 : 2,257.39 = 1,076.76 : x
  2. Step 2: Convert to fraction form
    1,636.49/2,257.39 = 1,076.76/x
  3. Step 3: Cross multiply
    1,636.49x = 2,257.39 × 1,076.76
  4. Step 4: Simplify right side
    1,636.49x = 2,430,662.11
  5. Step 5: Solve for x
    x = 2,430,662.11/1,636.49
  6. Step 6: Final answer
    x = 1,485.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.