Home / 3,212.76-4,812.64-1,670.52

Finding the Fourth Proportional to 3,212.76, 4,812.64 and 1,670.52

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Solution

The fourth proportional to 3,212.76, 4,812.64 and 1,670.52 is: 2,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.76 : 4,812.64 = 1,670.52 : x
  2. Step 2: Convert to fraction form
    3,212.76/4,812.64 = 1,670.52/x
  3. Step 3: Cross multiply
    3,212.76x = 4,812.64 × 1,670.52
  4. Step 4: Simplify right side
    3,212.76x = 8,039,611.37
  5. Step 5: Solve for x
    x = 8,039,611.37/3,212.76
  6. Step 6: Final answer
    x = 2,502.40

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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.