Home / 5,180.69-7,149.53-2,823.05

Finding the Fourth Proportional to 5,180.69, 7,149.53 and 2,823.05

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Solution

The fourth proportional to 5,180.69, 7,149.53 and 2,823.05 is: 3,895.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.69 : 7,149.53 = 2,823.05 : x
  2. Step 2: Convert to fraction form
    5,180.69/7,149.53 = 2,823.05/x
  3. Step 3: Cross multiply
    5,180.69x = 7,149.53 × 2,823.05
  4. Step 4: Simplify right side
    5,180.69x = 20,183,480.67
  5. Step 5: Solve for x
    x = 20,183,480.67/5,180.69
  6. Step 6: Final answer
    x = 3,895.91

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1.5x scale

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.