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Finding the Fourth Proportional to 2,271.35, 3,408 and 955.44

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Solution

The fourth proportional to 2,271.35, 3,408 and 955.44 is: 1,433.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.35 : 3,408 = 955.44 : x
  2. Step 2: Convert to fraction form
    2,271.35/3,408 = 955.44/x
  3. Step 3: Cross multiply
    2,271.35x = 3,408 × 955.44
  4. Step 4: Simplify right side
    2,271.35x = 3,256,139.52
  5. Step 5: Solve for x
    x = 3,256,139.52/2,271.35
  6. Step 6: Final answer
    x = 1,433.57

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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.