Home / 5,180.69-7,771.05-1,670.95

Finding the Fourth Proportional to 5,180.69, 7,771.05 and 1,670.95

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Solution

The fourth proportional to 5,180.69, 7,771.05 and 1,670.95 is: 2,506.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.69 : 7,771.05 = 1,670.95 : x
  2. Step 2: Convert to fraction form
    5,180.69/7,771.05 = 1,670.95/x
  3. Step 3: Cross multiply
    5,180.69x = 7,771.05 × 1,670.95
  4. Step 4: Simplify right side
    5,180.69x = 12,985,036.00
  5. Step 5: Solve for x
    x = 12,985,036.00/5,180.69
  6. Step 6: Final answer
    x = 2,506.43

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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.