Home / 4,211.86-6,317.81-1,091.65

Finding the Fourth Proportional to 4,211.86, 6,317.81 and 1,091.65

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Solution

The fourth proportional to 4,211.86, 6,317.81 and 1,091.65 is: 1,637.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.86 : 6,317.81 = 1,091.65 : x
  2. Step 2: Convert to fraction form
    4,211.86/6,317.81 = 1,091.65/x
  3. Step 3: Cross multiply
    4,211.86x = 6,317.81 × 1,091.65
  4. Step 4: Simplify right side
    4,211.86x = 6,896,837.29
  5. Step 5: Solve for x
    x = 6,896,837.29/4,211.86
  6. Step 6: Final answer
    x = 1,637.48

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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.