Home / 2,089.86-2,883.77-1,205.95

Finding the Fourth Proportional to 2,089.86, 2,883.77 and 1,205.95

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Solution

The fourth proportional to 2,089.86, 2,883.77 and 1,205.95 is: 1,664.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,089.86 : 2,883.77 = 1,205.95 : x
  2. Step 2: Convert to fraction form
    2,089.86/2,883.77 = 1,205.95/x
  3. Step 3: Cross multiply
    2,089.86x = 2,883.77 × 1,205.95
  4. Step 4: Simplify right side
    2,089.86x = 3,477,661.98
  5. Step 5: Solve for x
    x = 3,477,661.98/2,089.86
  6. Step 6: Final answer
    x = 1,664.07

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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.