Home / 2,408.21-3,612.32-947.51

Finding the Fourth Proportional to 2,408.21, 3,612.32 and 947.51

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Solution

The fourth proportional to 2,408.21, 3,612.32 and 947.51 is: 1,421.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,408.21 : 3,612.32 = 947.51 : x
  2. Step 2: Convert to fraction form
    2,408.21/3,612.32 = 947.51/x
  3. Step 3: Cross multiply
    2,408.21x = 3,612.32 × 947.51
  4. Step 4: Simplify right side
    2,408.21x = 3,422,704.59
  5. Step 5: Solve for x
    x = 3,422,704.59/2,408.21
  6. Step 6: Final answer
    x = 1,421.27

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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.