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Finding the Fourth Proportional to 5,281.91, 7,923.62 and 1,995.79

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Solution

The fourth proportional to 5,281.91, 7,923.62 and 1,995.79 is: 2,993.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.91 : 7,923.62 = 1,995.79 : x
  2. Step 2: Convert to fraction form
    5,281.91/7,923.62 = 1,995.79/x
  3. Step 3: Cross multiply
    5,281.91x = 7,923.62 × 1,995.79
  4. Step 4: Simplify right side
    5,281.91x = 15,813,881.60
  5. Step 5: Solve for x
    x = 15,813,881.60/5,281.91
  6. Step 6: Final answer
    x = 2,993.97

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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.