Home / 4,271.39-6,404.74-1,928.64

Finding the Fourth Proportional to 4,271.39, 6,404.74 and 1,928.64

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Solution

The fourth proportional to 4,271.39, 6,404.74 and 1,928.64 is: 2,891.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,271.39 : 6,404.74 = 1,928.64 : x
  2. Step 2: Convert to fraction form
    4,271.39/6,404.74 = 1,928.64/x
  3. Step 3: Cross multiply
    4,271.39x = 6,404.74 × 1,928.64
  4. Step 4: Simplify right side
    4,271.39x = 12,352,437.75
  5. Step 5: Solve for x
    x = 12,352,437.75/4,271.39
  6. Step 6: Final answer
    x = 2,891.90

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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.