Home / 3,981.78-5,973.63-1,349.46

Finding the Fourth Proportional to 3,981.78, 5,973.63 and 1,349.46

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Solution

The fourth proportional to 3,981.78, 5,973.63 and 1,349.46 is: 2,024.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.78 : 5,973.63 = 1,349.46 : x
  2. Step 2: Convert to fraction form
    3,981.78/5,973.63 = 1,349.46/x
  3. Step 3: Cross multiply
    3,981.78x = 5,973.63 × 1,349.46
  4. Step 4: Simplify right side
    3,981.78x = 8,061,174.74
  5. Step 5: Solve for x
    x = 8,061,174.74/3,981.78
  6. Step 6: Final answer
    x = 2,024.52

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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.