Home / 3,212.50-4,818.69-1,239.07

Finding the Fourth Proportional to 3,212.50, 4,818.69 and 1,239.07

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Solution

The fourth proportional to 3,212.50, 4,818.69 and 1,239.07 is: 1,858.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.50 : 4,818.69 = 1,239.07 : x
  2. Step 2: Convert to fraction form
    3,212.50/4,818.69 = 1,239.07/x
  3. Step 3: Cross multiply
    3,212.50x = 4,818.69 × 1,239.07
  4. Step 4: Simplify right side
    3,212.50x = 5,970,704.76
  5. Step 5: Solve for x
    x = 5,970,704.76/3,212.50
  6. Step 6: Final answer
    x = 1,858.59

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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.