Home / 3,409.19-4,705.47-1,993.53

Finding the Fourth Proportional to 3,409.19, 4,705.47 and 1,993.53

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Solution

The fourth proportional to 3,409.19, 4,705.47 and 1,993.53 is: 2,751.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.19 : 4,705.47 = 1,993.53 : x
  2. Step 2: Convert to fraction form
    3,409.19/4,705.47 = 1,993.53/x
  3. Step 3: Cross multiply
    3,409.19x = 4,705.47 × 1,993.53
  4. Step 4: Simplify right side
    3,409.19x = 9,380,491.11
  5. Step 5: Solve for x
    x = 9,380,491.11/3,409.19
  6. Step 6: Final answer
    x = 2,751.53

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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.