Home / 2,678.24-4,018.58-1,584.74

Finding the Fourth Proportional to 2,678.24, 4,018.58 and 1,584.74

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Solution

The fourth proportional to 2,678.24, 4,018.58 and 1,584.74 is: 2,377.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.24 : 4,018.58 = 1,584.74 : x
  2. Step 2: Convert to fraction form
    2,678.24/4,018.58 = 1,584.74/x
  3. Step 3: Cross multiply
    2,678.24x = 4,018.58 × 1,584.74
  4. Step 4: Simplify right side
    2,678.24x = 6,368,404.47
  5. Step 5: Solve for x
    x = 6,368,404.47/2,678.24
  6. Step 6: Final answer
    x = 2,377.83

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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.