Home / 4,653.45-6,981.36-1,321.71

Finding the Fourth Proportional to 4,653.45, 6,981.36 and 1,321.71

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Solution

The fourth proportional to 4,653.45, 6,981.36 and 1,321.71 is: 1,982.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,653.45 : 6,981.36 = 1,321.71 : x
  2. Step 2: Convert to fraction form
    4,653.45/6,981.36 = 1,321.71/x
  3. Step 3: Cross multiply
    4,653.45x = 6,981.36 × 1,321.71
  4. Step 4: Simplify right side
    4,653.45x = 9,227,333.33
  5. Step 5: Solve for x
    x = 9,227,333.33/4,653.45
  6. Step 6: Final answer
    x = 1,982.90

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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.