Home / 2,408.12-3,615.28-1,313.23

Finding the Fourth Proportional to 2,408.12, 3,615.28 and 1,313.23

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Solution

The fourth proportional to 2,408.12, 3,615.28 and 1,313.23 is: 1,971.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,408.12 : 3,615.28 = 1,313.23 : x
  2. Step 2: Convert to fraction form
    2,408.12/3,615.28 = 1,313.23/x
  3. Step 3: Cross multiply
    2,408.12x = 3,615.28 × 1,313.23
  4. Step 4: Simplify right side
    2,408.12x = 4,747,694.15
  5. Step 5: Solve for x
    x = 4,747,694.15/2,408.12
  6. Step 6: Final answer
    x = 1,971.54

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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.