Home / 4,005.84-5,964.36-3,986.40

Finding the Fourth Proportional to 4,005.84, 5,964.36 and 3,986.40

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Solution

The fourth proportional to 4,005.84, 5,964.36 and 3,986.40 is: 5,935.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,005.84 : 5,964.36 = 3,986.40 : x
  2. Step 2: Convert to fraction form
    4,005.84/5,964.36 = 3,986.40/x
  3. Step 3: Cross multiply
    4,005.84x = 5,964.36 × 3,986.40
  4. Step 4: Simplify right side
    4,005.84x = 23,776,324.70
  5. Step 5: Solve for x
    x = 23,776,324.70/4,005.84
  6. Step 6: Final answer
    x = 5,935.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.