Home / 2,454.39-3,681.62-723.05

Finding the Fourth Proportional to 2,454.39, 3,681.62 and 723.05

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Solution

The fourth proportional to 2,454.39, 3,681.62 and 723.05 is: 1,084.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,454.39 : 3,681.62 = 723.05 : x
  2. Step 2: Convert to fraction form
    2,454.39/3,681.62 = 723.05/x
  3. Step 3: Cross multiply
    2,454.39x = 3,681.62 × 723.05
  4. Step 4: Simplify right side
    2,454.39x = 2,661,991.73
  5. Step 5: Solve for x
    x = 2,661,991.73/2,454.39
  6. Step 6: Final answer
    x = 1,084.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.