Home / 4,784.46-7,177.10-1,321.71

Finding the Fourth Proportional to 4,784.46, 7,177.10 and 1,321.71

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Solution

The fourth proportional to 4,784.46, 7,177.10 and 1,321.71 is: 1,982.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,784.46 : 7,177.10 = 1,321.71 : x
  2. Step 2: Convert to fraction form
    4,784.46/7,177.10 = 1,321.71/x
  3. Step 3: Cross multiply
    4,784.46x = 7,177.10 × 1,321.71
  4. Step 4: Simplify right side
    4,784.46x = 9,486,044.84
  5. Step 5: Solve for x
    x = 9,486,044.84/4,784.46
  6. Step 6: Final answer
    x = 1,982.68

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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.