Home / 5,631.65-7,771.71-3,113.80

Finding the Fourth Proportional to 5,631.65, 7,771.71 and 3,113.80

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Solution

The fourth proportional to 5,631.65, 7,771.71 and 3,113.80 is: 4,297.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,631.65 : 7,771.71 = 3,113.80 : x
  2. Step 2: Convert to fraction form
    5,631.65/7,771.71 = 3,113.80/x
  3. Step 3: Cross multiply
    5,631.65x = 7,771.71 × 3,113.80
  4. Step 4: Simplify right side
    5,631.65x = 24,199,542.85
  5. Step 5: Solve for x
    x = 24,199,542.85/5,631.65
  6. Step 6: Final answer
    x = 4,297.06

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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.