Home / 4,785.21-7,176.80-3,394.64

Finding the Fourth Proportional to 4,785.21, 7,176.80 and 3,394.64

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Solution

The fourth proportional to 4,785.21, 7,176.80 and 3,394.64 is: 5,091.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.21 : 7,176.80 = 3,394.64 : x
  2. Step 2: Convert to fraction form
    4,785.21/7,176.80 = 3,394.64/x
  3. Step 3: Cross multiply
    4,785.21x = 7,176.80 × 3,394.64
  4. Step 4: Simplify right side
    4,785.21x = 24,362,678.78
  5. Step 5: Solve for x
    x = 24,362,678.78/4,785.21
  6. Step 6: Final answer
    x = 5,091.25

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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.