Home / 4,212.37-6,318.86-1,290.29

Finding the Fourth Proportional to 4,212.37, 6,318.86 and 1,290.29

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Solution

The fourth proportional to 4,212.37, 6,318.86 and 1,290.29 is: 1,935.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,212.37 : 6,318.86 = 1,290.29 : x
  2. Step 2: Convert to fraction form
    4,212.37/6,318.86 = 1,290.29/x
  3. Step 3: Cross multiply
    4,212.37x = 6,318.86 × 1,290.29
  4. Step 4: Simplify right side
    4,212.37x = 8,153,161.87
  5. Step 5: Solve for x
    x = 8,153,161.87/4,212.37
  6. Step 6: Final answer
    x = 1,935.53

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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.