Home / 7,675.51-11,515.71-2,741.80

Finding the Fourth Proportional to 7,675.51, 11,515.71 and 2,741.80

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Solution

The fourth proportional to 7,675.51, 11,515.71 and 2,741.80 is: 4,113.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,675.51 : 11,515.71 = 2,741.80 : x
  2. Step 2: Convert to fraction form
    7,675.51/11,515.71 = 2,741.80/x
  3. Step 3: Cross multiply
    7,675.51x = 11,515.71 × 2,741.80
  4. Step 4: Simplify right side
    7,675.51x = 31,573,773.68
  5. Step 5: Solve for x
    x = 31,573,773.68/7,675.51
  6. Step 6: Final answer
    x = 4,113.57

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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.