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Finding the Fourth Proportional to 1,941.09, 2,910.93 and 845.19

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Solution

The fourth proportional to 1,941.09, 2,910.93 and 845.19 is: 1,267.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.09 : 2,910.93 = 845.19 : x
  2. Step 2: Convert to fraction form
    1,941.09/2,910.93 = 845.19/x
  3. Step 3: Cross multiply
    1,941.09x = 2,910.93 × 845.19
  4. Step 4: Simplify right side
    1,941.09x = 2,460,288.93
  5. Step 5: Solve for x
    x = 2,460,288.93/1,941.09
  6. Step 6: Final answer
    x = 1,267.48

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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.