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Finding the Fourth Proportional to 3,410.33, 4,706.28 and 1,918.25

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Solution

The fourth proportional to 3,410.33, 4,706.28 and 1,918.25 is: 2,647.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,410.33 : 4,706.28 = 1,918.25 : x
  2. Step 2: Convert to fraction form
    3,410.33/4,706.28 = 1,918.25/x
  3. Step 3: Cross multiply
    3,410.33x = 4,706.28 × 1,918.25
  4. Step 4: Simplify right side
    3,410.33x = 9,027,821.61
  5. Step 5: Solve for x
    x = 9,027,821.61/3,410.33
  6. Step 6: Final answer
    x = 2,647.20

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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.