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Finding the Fourth Proportional to 1,636.33, 2,452.02 and 856.54

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Solution

The fourth proportional to 1,636.33, 2,452.02 and 856.54 is: 1,283.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636.33 : 2,452.02 = 856.54 : x
  2. Step 2: Convert to fraction form
    1,636.33/2,452.02 = 856.54/x
  3. Step 3: Cross multiply
    1,636.33x = 2,452.02 × 856.54
  4. Step 4: Simplify right side
    1,636.33x = 2,100,253.21
  5. Step 5: Solve for x
    x = 2,100,253.21/1,636.33
  6. Step 6: Final answer
    x = 1,283.51

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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.