Home / 3,018.74-4,165.62-1,899.32

Finding the Fourth Proportional to 3,018.74, 4,165.62 and 1,899.32

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Solution

The fourth proportional to 3,018.74, 4,165.62 and 1,899.32 is: 2,620.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.74 : 4,165.62 = 1,899.32 : x
  2. Step 2: Convert to fraction form
    3,018.74/4,165.62 = 1,899.32/x
  3. Step 3: Cross multiply
    3,018.74x = 4,165.62 × 1,899.32
  4. Step 4: Simplify right side
    3,018.74x = 7,911,845.38
  5. Step 5: Solve for x
    x = 7,911,845.38/3,018.74
  6. Step 6: Final answer
    x = 2,620.91

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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.