Home / 2,857.69-4,284.46-1,930.93

Finding the Fourth Proportional to 2,857.69, 4,284.46 and 1,930.93

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Solution

The fourth proportional to 2,857.69, 4,284.46 and 1,930.93 is: 2,894.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.69 : 4,284.46 = 1,930.93 : x
  2. Step 2: Convert to fraction form
    2,857.69/4,284.46 = 1,930.93/x
  3. Step 3: Cross multiply
    2,857.69x = 4,284.46 × 1,930.93
  4. Step 4: Simplify right side
    2,857.69x = 8,272,992.35
  5. Step 5: Solve for x
    x = 8,272,992.35/2,857.69
  6. Step 6: Final answer
    x = 2,894.99

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1.5x scale

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.