Home / 3,018.60-4,165.38-1,839.42

Finding the Fourth Proportional to 3,018.60, 4,165.38 and 1,839.42

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Solution

The fourth proportional to 3,018.60, 4,165.38 and 1,839.42 is: 2,538.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.60 : 4,165.38 = 1,839.42 : x
  2. Step 2: Convert to fraction form
    3,018.60/4,165.38 = 1,839.42/x
  3. Step 3: Cross multiply
    3,018.60x = 4,165.38 × 1,839.42
  4. Step 4: Simplify right side
    3,018.60x = 7,661,883.28
  5. Step 5: Solve for x
    x = 7,661,883.28/3,018.60
  6. Step 6: Final answer
    x = 2,538.22

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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.