Home / 3,015.54-4,161.44-1,689.24

Finding the Fourth Proportional to 3,015.54, 4,161.44 and 1,689.24

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Solution

The fourth proportional to 3,015.54, 4,161.44 and 1,689.24 is: 2,331.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.54 : 4,161.44 = 1,689.24 : x
  2. Step 2: Convert to fraction form
    3,015.54/4,161.44 = 1,689.24/x
  3. Step 3: Cross multiply
    3,015.54x = 4,161.44 × 1,689.24
  4. Step 4: Simplify right side
    3,015.54x = 7,029,662.46
  5. Step 5: Solve for x
    x = 7,029,662.46/3,015.54
  6. Step 6: Final answer
    x = 2,331.15

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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.