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Finding the Fourth Proportional to 2,803.88, 3,867.54 and 2,708.84

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Solution

The fourth proportional to 2,803.88, 3,867.54 and 2,708.84 is: 3,736.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.88 : 3,867.54 = 2,708.84 : x
  2. Step 2: Convert to fraction form
    2,803.88/3,867.54 = 2,708.84/x
  3. Step 3: Cross multiply
    2,803.88x = 3,867.54 × 2,708.84
  4. Step 4: Simplify right side
    2,803.88x = 10,476,547.05
  5. Step 5: Solve for x
    x = 10,476,547.05/2,803.88
  6. Step 6: Final answer
    x = 3,736.45

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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.