Home / 3,425.77-4,727.74-2,081.40

Finding the Fourth Proportional to 3,425.77, 4,727.74 and 2,081.40

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Solution

The fourth proportional to 3,425.77, 4,727.74 and 2,081.40 is: 2,872.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.77 : 4,727.74 = 2,081.40 : x
  2. Step 2: Convert to fraction form
    3,425.77/4,727.74 = 2,081.40/x
  3. Step 3: Cross multiply
    3,425.77x = 4,727.74 × 2,081.40
  4. Step 4: Simplify right side
    3,425.77x = 9,840,318.04
  5. Step 5: Solve for x
    x = 9,840,318.04/3,425.77
  6. Step 6: Final answer
    x = 2,872.44

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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.