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Finding the Fourth Proportional to 2,683.78, 3,703.23 and 1,635.64

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Solution

The fourth proportional to 2,683.78, 3,703.23 and 1,635.64 is: 2,256.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,683.78 : 3,703.23 = 1,635.64 : x
  2. Step 2: Convert to fraction form
    2,683.78/3,703.23 = 1,635.64/x
  3. Step 3: Cross multiply
    2,683.78x = 3,703.23 × 1,635.64
  4. Step 4: Simplify right side
    2,683.78x = 6,057,151.12
  5. Step 5: Solve for x
    x = 6,057,151.12/2,683.78
  6. Step 6: Final answer
    x = 2,256.95

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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.