Home / 5,180.09-7,148.32-2,822.24

Finding the Fourth Proportional to 5,180.09, 7,148.32 and 2,822.24

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Solution

The fourth proportional to 5,180.09, 7,148.32 and 2,822.24 is: 3,894.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.09 : 7,148.32 = 2,822.24 : x
  2. Step 2: Convert to fraction form
    5,180.09/7,148.32 = 2,822.24/x
  3. Step 3: Cross multiply
    5,180.09x = 7,148.32 × 2,822.24
  4. Step 4: Simplify right side
    5,180.09x = 20,174,285.45
  5. Step 5: Solve for x
    x = 20,174,285.45/5,180.09
  6. Step 6: Final answer
    x = 3,894.59

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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.