Home / 4,780.46-7,170.66-1,860.82

Finding the Fourth Proportional to 4,780.46, 7,170.66 and 1,860.82

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Solution

The fourth proportional to 4,780.46, 7,170.66 and 1,860.82 is: 2,791.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.46 : 7,170.66 = 1,860.82 : x
  2. Step 2: Convert to fraction form
    4,780.46/7,170.66 = 1,860.82/x
  3. Step 3: Cross multiply
    4,780.46x = 7,170.66 × 1,860.82
  4. Step 4: Simplify right side
    4,780.46x = 13,343,307.54
  5. Step 5: Solve for x
    x = 13,343,307.54/4,780.46
  6. Step 6: Final answer
    x = 2,791.22

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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.