Home / 2,919.39-4,029.51-1,661.16

Finding the Fourth Proportional to 2,919.39, 4,029.51 and 1,661.16

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Solution

The fourth proportional to 2,919.39, 4,029.51 and 1,661.16 is: 2,292.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.39 : 4,029.51 = 1,661.16 : x
  2. Step 2: Convert to fraction form
    2,919.39/4,029.51 = 1,661.16/x
  3. Step 3: Cross multiply
    2,919.39x = 4,029.51 × 1,661.16
  4. Step 4: Simplify right side
    2,919.39x = 6,693,660.83
  5. Step 5: Solve for x
    x = 6,693,660.83/2,919.39
  6. Step 6: Final answer
    x = 2,292.83

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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.