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Finding the Fourth Proportional to 3,185.77, 4,775.71 and 2,923.01

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Solution

The fourth proportional to 3,185.77, 4,775.71 and 2,923.01 is: 4,381.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.77 : 4,775.71 = 2,923.01 : x
  2. Step 2: Convert to fraction form
    3,185.77/4,775.71 = 2,923.01/x
  3. Step 3: Cross multiply
    3,185.77x = 4,775.71 × 2,923.01
  4. Step 4: Simplify right side
    3,185.77x = 13,959,428.84
  5. Step 5: Solve for x
    x = 13,959,428.84/3,185.77
  6. Step 6: Final answer
    x = 4,381.81

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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.