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Finding the Fourth Proportional to 3,966.84, 5,973.84 and 2,878.79

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Solution

The fourth proportional to 3,966.84, 5,973.84 and 2,878.79 is: 4,335.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.84 : 5,973.84 = 2,878.79 : x
  2. Step 2: Convert to fraction form
    3,966.84/5,973.84 = 2,878.79/x
  3. Step 3: Cross multiply
    3,966.84x = 5,973.84 × 2,878.79
  4. Step 4: Simplify right side
    3,966.84x = 17,197,400.98
  5. Step 5: Solve for x
    x = 17,197,400.98/3,966.84
  6. Step 6: Final answer
    x = 4,335.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.