Home / 3,212.48-4,818-1,914.32

Finding the Fourth Proportional to 3,212.48, 4,818 and 1,914.32

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Solution

The fourth proportional to 3,212.48, 4,818 and 1,914.32 is: 2,871.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.48 : 4,818 = 1,914.32 : x
  2. Step 2: Convert to fraction form
    3,212.48/4,818 = 1,914.32/x
  3. Step 3: Cross multiply
    3,212.48x = 4,818 × 1,914.32
  4. Step 4: Simplify right side
    3,212.48x = 9,223,193.76
  5. Step 5: Solve for x
    x = 9,223,193.76/3,212.48
  6. Step 6: Final answer
    x = 2,871.05

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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.