Home / 3,315.21-4,971.51-1,234.07

Finding the Fourth Proportional to 3,315.21, 4,971.51 and 1,234.07

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Solution

The fourth proportional to 3,315.21, 4,971.51 and 1,234.07 is: 1,850.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.21 : 4,971.51 = 1,234.07 : x
  2. Step 2: Convert to fraction form
    3,315.21/4,971.51 = 1,234.07/x
  3. Step 3: Cross multiply
    3,315.21x = 4,971.51 × 1,234.07
  4. Step 4: Simplify right side
    3,315.21x = 6,135,197.60
  5. Step 5: Solve for x
    x = 6,135,197.60/3,315.21
  6. Step 6: Final answer
    x = 1,850.62

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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.