Home / 5,180.09-7,148.55-2,822.25

Finding the Fourth Proportional to 5,180.09, 7,148.55 and 2,822.25

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Solution

The fourth proportional to 5,180.09, 7,148.55 and 2,822.25 is: 3,894.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.09 : 7,148.55 = 2,822.25 : x
  2. Step 2: Convert to fraction form
    5,180.09/7,148.55 = 2,822.25/x
  3. Step 3: Cross multiply
    5,180.09x = 7,148.55 × 2,822.25
  4. Step 4: Simplify right side
    5,180.09x = 20,174,995.24
  5. Step 5: Solve for x
    x = 20,174,995.24/5,180.09
  6. Step 6: Final answer
    x = 3,894.72

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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.