Home / 1,893.19-2,613.90-1,185.34

Finding the Fourth Proportional to 1,893.19, 2,613.90 and 1,185.34

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Solution

The fourth proportional to 1,893.19, 2,613.90 and 1,185.34 is: 1,636.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893.19 : 2,613.90 = 1,185.34 : x
  2. Step 2: Convert to fraction form
    1,893.19/2,613.90 = 1,185.34/x
  3. Step 3: Cross multiply
    1,893.19x = 2,613.90 × 1,185.34
  4. Step 4: Simplify right side
    1,893.19x = 3,098,360.23
  5. Step 5: Solve for x
    x = 3,098,360.23/1,893.19
  6. Step 6: Final answer
    x = 1,636.58

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Double scale
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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.