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Finding the Fourth Proportional to 1,716.63, 2,363.23 and 1,638.27

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Solution

The fourth proportional to 1,716.63, 2,363.23 and 1,638.27 is: 2,255.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,716.63 : 2,363.23 = 1,638.27 : x
  2. Step 2: Convert to fraction form
    1,716.63/2,363.23 = 1,638.27/x
  3. Step 3: Cross multiply
    1,716.63x = 2,363.23 × 1,638.27
  4. Step 4: Simplify right side
    1,716.63x = 3,871,608.81
  5. Step 5: Solve for x
    x = 3,871,608.81/1,716.63
  6. Step 6: Final answer
    x = 2,255.35

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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.