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Finding the Fourth Proportional to 1,591.36, 2,196.09 and 883.25

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Solution

The fourth proportional to 1,591.36, 2,196.09 and 883.25 is: 1,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.36 : 2,196.09 = 883.25 : x
  2. Step 2: Convert to fraction form
    1,591.36/2,196.09 = 883.25/x
  3. Step 3: Cross multiply
    1,591.36x = 2,196.09 × 883.25
  4. Step 4: Simplify right side
    1,591.36x = 1,939,701.98
  5. Step 5: Solve for x
    x = 1,939,701.98/1,591.36
  6. Step 6: Final answer
    x = 1,218.90

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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.