Home / 4,515.72-6,776.47-1,918.66

Finding the Fourth Proportional to 4,515.72, 6,776.47 and 1,918.66

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Solution

The fourth proportional to 4,515.72, 6,776.47 and 1,918.66 is: 2,879.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,515.72 : 6,776.47 = 1,918.66 : x
  2. Step 2: Convert to fraction form
    4,515.72/6,776.47 = 1,918.66/x
  3. Step 3: Cross multiply
    4,515.72x = 6,776.47 × 1,918.66
  4. Step 4: Simplify right side
    4,515.72x = 13,001,741.93
  5. Step 5: Solve for x
    x = 13,001,741.93/4,515.72
  6. Step 6: Final answer
    x = 2,879.22

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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.