Home / 4,271.40-6,408.72-1,930.74

Finding the Fourth Proportional to 4,271.40, 6,408.72 and 1,930.74

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Solution

The fourth proportional to 4,271.40, 6,408.72 and 1,930.74 is: 2,896.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,271.40 : 6,408.72 = 1,930.74 : x
  2. Step 2: Convert to fraction form
    4,271.40/6,408.72 = 1,930.74/x
  3. Step 3: Cross multiply
    4,271.40x = 6,408.72 × 1,930.74
  4. Step 4: Simplify right side
    4,271.40x = 12,373,572.05
  5. Step 5: Solve for x
    x = 12,373,572.05/4,271.40
  6. Step 6: Final answer
    x = 2,896.84

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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.