Home / 3,619.16-4,992.77-2,127.05

Finding the Fourth Proportional to 3,619.16, 4,992.77 and 2,127.05

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Solution

The fourth proportional to 3,619.16, 4,992.77 and 2,127.05 is: 2,934.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.16 : 4,992.77 = 2,127.05 : x
  2. Step 2: Convert to fraction form
    3,619.16/4,992.77 = 2,127.05/x
  3. Step 3: Cross multiply
    3,619.16x = 4,992.77 × 2,127.05
  4. Step 4: Simplify right side
    3,619.16x = 10,619,860.79
  5. Step 5: Solve for x
    x = 10,619,860.79/3,619.16
  6. Step 6: Final answer
    x = 2,934.34

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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.