Home / 3,149.07-4,346.90-2,705.19

Finding the Fourth Proportional to 3,149.07, 4,346.90 and 2,705.19

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Solution

The fourth proportional to 3,149.07, 4,346.90 and 2,705.19 is: 3,734.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.07 : 4,346.90 = 2,705.19 : x
  2. Step 2: Convert to fraction form
    3,149.07/4,346.90 = 2,705.19/x
  3. Step 3: Cross multiply
    3,149.07x = 4,346.90 × 2,705.19
  4. Step 4: Simplify right side
    3,149.07x = 11,759,190.41
  5. Step 5: Solve for x
    x = 11,759,190.41/3,149.07
  6. Step 6: Final answer
    x = 3,734.18

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Half scale
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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.