Home / 3,957.21-5,923.49-2,918.39

Finding the Fourth Proportional to 3,957.21, 5,923.49 and 2,918.39

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Solution

The fourth proportional to 3,957.21, 5,923.49 and 2,918.39 is: 4,368.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.21 : 5,923.49 = 2,918.39 : x
  2. Step 2: Convert to fraction form
    3,957.21/5,923.49 = 2,918.39/x
  3. Step 3: Cross multiply
    3,957.21x = 5,923.49 × 2,918.39
  4. Step 4: Simplify right side
    3,957.21x = 17,287,009.77
  5. Step 5: Solve for x
    x = 17,287,009.77/3,957.21
  6. Step 6: Final answer
    x = 4,368.48

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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.