Home / 3,018.30-4,165.56-1,900.14

Finding the Fourth Proportional to 3,018.30, 4,165.56 and 1,900.14

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Solution

The fourth proportional to 3,018.30, 4,165.56 and 1,900.14 is: 2,622.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.30 : 4,165.56 = 1,900.14 : x
  2. Step 2: Convert to fraction form
    3,018.30/4,165.56 = 1,900.14/x
  3. Step 3: Cross multiply
    3,018.30x = 4,165.56 × 1,900.14
  4. Step 4: Simplify right side
    3,018.30x = 7,915,147.18
  5. Step 5: Solve for x
    x = 7,915,147.18/3,018.30
  6. Step 6: Final answer
    x = 2,622.39

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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.