Home / 3,055.73-4,210.85-2,169.05

Finding the Fourth Proportional to 3,055.73, 4,210.85 and 2,169.05

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Solution

The fourth proportional to 3,055.73, 4,210.85 and 2,169.05 is: 2,988.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,055.73 : 4,210.85 = 2,169.05 : x
  2. Step 2: Convert to fraction form
    3,055.73/4,210.85 = 2,169.05/x
  3. Step 3: Cross multiply
    3,055.73x = 4,210.85 × 2,169.05
  4. Step 4: Simplify right side
    3,055.73x = 9,133,528.56
  5. Step 5: Solve for x
    x = 9,133,528.56/3,055.73
  6. Step 6: Final answer
    x = 2,988.99

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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.