Home / 2,408.09-3,322.97-1,386.08

Finding the Fourth Proportional to 2,408.09, 3,322.97 and 1,386.08

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Solution

The fourth proportional to 2,408.09, 3,322.97 and 1,386.08 is: 1,912.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,408.09 : 3,322.97 = 1,386.08 : x
  2. Step 2: Convert to fraction form
    2,408.09/3,322.97 = 1,386.08/x
  3. Step 3: Cross multiply
    2,408.09x = 3,322.97 × 1,386.08
  4. Step 4: Simplify right side
    2,408.09x = 4,605,878.71
  5. Step 5: Solve for x
    x = 4,605,878.71/2,408.09
  6. Step 6: Final answer
    x = 1,912.67

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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.