Home / 3,981.84-5,973.48-1,384.08

Finding the Fourth Proportional to 3,981.84, 5,973.48 and 1,384.08

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Solution

The fourth proportional to 3,981.84, 5,973.48 and 1,384.08 is: 2,076.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.84 : 5,973.48 = 1,384.08 : x
  2. Step 2: Convert to fraction form
    3,981.84/5,973.48 = 1,384.08/x
  3. Step 3: Cross multiply
    3,981.84x = 5,973.48 × 1,384.08
  4. Step 4: Simplify right side
    3,981.84x = 8,267,774.20
  5. Step 5: Solve for x
    x = 8,267,774.20/3,981.84
  6. Step 6: Final answer
    x = 2,076.37

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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.