Home / 3,112.21-4,669.93-1,264.69

Finding the Fourth Proportional to 3,112.21, 4,669.93 and 1,264.69

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Solution

The fourth proportional to 3,112.21, 4,669.93 and 1,264.69 is: 1,897.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.21 : 4,669.93 = 1,264.69 : x
  2. Step 2: Convert to fraction form
    3,112.21/4,669.93 = 1,264.69/x
  3. Step 3: Cross multiply
    3,112.21x = 4,669.93 × 1,264.69
  4. Step 4: Simplify right side
    3,112.21x = 5,905,990.42
  5. Step 5: Solve for x
    x = 5,905,990.42/3,112.21
  6. Step 6: Final answer
    x = 1,897.69

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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.