Home / 4,211.07-6,317.31-1,288.69

Finding the Fourth Proportional to 4,211.07, 6,317.31 and 1,288.69

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Solution

The fourth proportional to 4,211.07, 6,317.31 and 1,288.69 is: 1,933.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.07 : 6,317.31 = 1,288.69 : x
  2. Step 2: Convert to fraction form
    4,211.07/6,317.31 = 1,288.69/x
  3. Step 3: Cross multiply
    4,211.07x = 6,317.31 × 1,288.69
  4. Step 4: Simplify right side
    4,211.07x = 8,141,054.22
  5. Step 5: Solve for x
    x = 8,141,054.22/4,211.07
  6. Step 6: Final answer
    x = 1,933.25

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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.