Home / 3,121.84-4,677.96-1,583.92

Finding the Fourth Proportional to 3,121.84, 4,677.96 and 1,583.92

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Solution

The fourth proportional to 3,121.84, 4,677.96 and 1,583.92 is: 2,373.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121.84 : 4,677.96 = 1,583.92 : x
  2. Step 2: Convert to fraction form
    3,121.84/4,677.96 = 1,583.92/x
  3. Step 3: Cross multiply
    3,121.84x = 4,677.96 × 1,583.92
  4. Step 4: Simplify right side
    3,121.84x = 7,409,514.40
  5. Step 5: Solve for x
    x = 7,409,514.40/3,121.84
  6. Step 6: Final answer
    x = 2,373.44

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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.