Home / 5,418.77-7,476.17-3,180.60

Finding the Fourth Proportional to 5,418.77, 7,476.17 and 3,180.60

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Solution

The fourth proportional to 5,418.77, 7,476.17 and 3,180.60 is: 4,388.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.77 : 7,476.17 = 3,180.60 : x
  2. Step 2: Convert to fraction form
    5,418.77/7,476.17 = 3,180.60/x
  3. Step 3: Cross multiply
    5,418.77x = 7,476.17 × 3,180.60
  4. Step 4: Simplify right side
    5,418.77x = 23,778,690.40
  5. Step 5: Solve for x
    x = 23,778,690.40/5,418.77
  6. Step 6: Final answer
    x = 4,388.21

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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.