Home / 3,965.90-5,472.79-2,287.37

Finding the Fourth Proportional to 3,965.90, 5,472.79 and 2,287.37

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Solution

The fourth proportional to 3,965.90, 5,472.79 and 2,287.37 is: 3,156.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,965.90 : 5,472.79 = 2,287.37 : x
  2. Step 2: Convert to fraction form
    3,965.90/5,472.79 = 2,287.37/x
  3. Step 3: Cross multiply
    3,965.90x = 5,472.79 × 2,287.37
  4. Step 4: Simplify right side
    3,965.90x = 12,518,303.63
  5. Step 5: Solve for x
    x = 12,518,303.63/3,965.90
  6. Step 6: Final answer
    x = 3,156.49

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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.