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Finding the Fourth Proportional to 3,103.94, 4,655.93 and 914.22

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Solution

The fourth proportional to 3,103.94, 4,655.93 and 914.22 is: 1,371.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.94 : 4,655.93 = 914.22 : x
  2. Step 2: Convert to fraction form
    3,103.94/4,655.93 = 914.22/x
  3. Step 3: Cross multiply
    3,103.94x = 4,655.93 × 914.22
  4. Step 4: Simplify right side
    3,103.94x = 4,256,539.75
  5. Step 5: Solve for x
    x = 4,256,539.75/3,103.94
  6. Step 6: Final answer
    x = 1,371.33

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Similar ratio
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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.