Home / 3,176.21-4,764.12-1,421.35

Finding the Fourth Proportional to 3,176.21, 4,764.12 and 1,421.35

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Solution

The fourth proportional to 3,176.21, 4,764.12 and 1,421.35 is: 2,131.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.21 : 4,764.12 = 1,421.35 : x
  2. Step 2: Convert to fraction form
    3,176.21/4,764.12 = 1,421.35/x
  3. Step 3: Cross multiply
    3,176.21x = 4,764.12 × 1,421.35
  4. Step 4: Simplify right side
    3,176.21x = 6,771,464.72
  5. Step 5: Solve for x
    x = 6,771,464.72/3,176.21
  6. Step 6: Final answer
    x = 2,131.93

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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.