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Finding the Fourth Proportional to 1,893.96, 2,613.96 and 1,108.26

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Solution

The fourth proportional to 1,893.96, 2,613.96 and 1,108.26 is: 1,529.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893.96 : 2,613.96 = 1,108.26 : x
  2. Step 2: Convert to fraction form
    1,893.96/2,613.96 = 1,108.26/x
  3. Step 3: Cross multiply
    1,893.96x = 2,613.96 × 1,108.26
  4. Step 4: Simplify right side
    1,893.96x = 2,896,947.31
  5. Step 5: Solve for x
    x = 2,896,947.31/1,893.96
  6. Step 6: Final answer
    x = 1,529.57

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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.