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Finding the Fourth Proportional to 6,883.74, 10,323.78 and 2,987.28

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Solution

The fourth proportional to 6,883.74, 10,323.78 and 2,987.28 is: 4,480.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,883.74 : 10,323.78 = 2,987.28 : x
  2. Step 2: Convert to fraction form
    6,883.74/10,323.78 = 2,987.28/x
  3. Step 3: Cross multiply
    6,883.74x = 10,323.78 × 2,987.28
  4. Step 4: Simplify right side
    6,883.74x = 30,840,021.52
  5. Step 5: Solve for x
    x = 30,840,021.52/6,883.74
  6. Step 6: Final answer
    x = 4,480.13

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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.