Home / 5,418.90-7,477.56-3,028.86

Finding the Fourth Proportional to 5,418.90, 7,477.56 and 3,028.86

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Solution

The fourth proportional to 5,418.90, 7,477.56 and 3,028.86 is: 4,179.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.90 : 7,477.56 = 3,028.86 : x
  2. Step 2: Convert to fraction form
    5,418.90/7,477.56 = 3,028.86/x
  3. Step 3: Cross multiply
    5,418.90x = 7,477.56 × 3,028.86
  4. Step 4: Simplify right side
    5,418.90x = 22,648,482.38
  5. Step 5: Solve for x
    x = 22,648,482.38/5,418.90
  6. Step 6: Final answer
    x = 4,179.54

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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.