Home / 4,285.48-6,425.79-1,687

Finding the Fourth Proportional to 4,285.48, 6,425.79 and 1,687

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Solution

The fourth proportional to 4,285.48, 6,425.79 and 1,687 is: 2,529.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285.48 : 6,425.79 = 1,687 : x
  2. Step 2: Convert to fraction form
    4,285.48/6,425.79 = 1,687/x
  3. Step 3: Cross multiply
    4,285.48x = 6,425.79 × 1,687
  4. Step 4: Simplify right side
    4,285.48x = 10,840,307.73
  5. Step 5: Solve for x
    x = 10,840,307.73/4,285.48
  6. Step 6: Final answer
    x = 2,529.54

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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.