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Finding the Fourth Proportional to 3,792.76, 5,690.27 and 1,945.18

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Solution

The fourth proportional to 3,792.76, 5,690.27 and 1,945.18 is: 2,918.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,792.76 : 5,690.27 = 1,945.18 : x
  2. Step 2: Convert to fraction form
    3,792.76/5,690.27 = 1,945.18/x
  3. Step 3: Cross multiply
    3,792.76x = 5,690.27 × 1,945.18
  4. Step 4: Simplify right side
    3,792.76x = 11,068,599.40
  5. Step 5: Solve for x
    x = 11,068,599.40/3,792.76
  6. Step 6: Final answer
    x = 2,918.35

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Double scale
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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.