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Finding the Fourth Proportional to 1,629.25, 2,248.35 and 883.19

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Solution

The fourth proportional to 1,629.25, 2,248.35 and 883.19 is: 1,218.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,629.25 : 2,248.35 = 883.19 : x
  2. Step 2: Convert to fraction form
    1,629.25/2,248.35 = 883.19/x
  3. Step 3: Cross multiply
    1,629.25x = 2,248.35 × 883.19
  4. Step 4: Simplify right side
    1,629.25x = 1,985,720.24
  5. Step 5: Solve for x
    x = 1,985,720.24/1,629.25
  6. Step 6: Final answer
    x = 1,218.79

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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.