Home / 1,636.84-2,455.26-1,122.28

Finding the Fourth Proportional to 1,636.84, 2,455.26 and 1,122.28

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Solution

The fourth proportional to 1,636.84, 2,455.26 and 1,122.28 is: 1,683.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636.84 : 2,455.26 = 1,122.28 : x
  2. Step 2: Convert to fraction form
    1,636.84/2,455.26 = 1,122.28/x
  3. Step 3: Cross multiply
    1,636.84x = 2,455.26 × 1,122.28
  4. Step 4: Simplify right side
    1,636.84x = 2,755,489.19
  5. Step 5: Solve for x
    x = 2,755,489.19/1,636.84
  6. Step 6: Final answer
    x = 1,683.42

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Similar ratio
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1.5x scale

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.