Home / 5,072.85-7,000.47-2,834.66

Finding the Fourth Proportional to 5,072.85, 7,000.47 and 2,834.66

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Solution

The fourth proportional to 5,072.85, 7,000.47 and 2,834.66 is: 3,911.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.85 : 7,000.47 = 2,834.66 : x
  2. Step 2: Convert to fraction form
    5,072.85/7,000.47 = 2,834.66/x
  3. Step 3: Cross multiply
    5,072.85x = 7,000.47 × 2,834.66
  4. Step 4: Simplify right side
    5,072.85x = 19,843,969.79
  5. Step 5: Solve for x
    x = 19,843,969.79/5,072.85
  6. Step 6: Final answer
    x = 3,911.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.