Home / 2,919.99-4,029.86-1,661.10

Finding the Fourth Proportional to 2,919.99, 4,029.86 and 1,661.10

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Solution

The fourth proportional to 2,919.99, 4,029.86 and 1,661.10 is: 2,292.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.99 : 4,029.86 = 1,661.10 : x
  2. Step 2: Convert to fraction form
    2,919.99/4,029.86 = 1,661.10/x
  3. Step 3: Cross multiply
    2,919.99x = 4,029.86 × 1,661.10
  4. Step 4: Simplify right side
    2,919.99x = 6,694,000.45
  5. Step 5: Solve for x
    x = 6,694,000.45/2,919.99
  6. Step 6: Final answer
    x = 2,292.47

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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.