Home / 2,784.92-3,843.45-1,666.17

Finding the Fourth Proportional to 2,784.92, 3,843.45 and 1,666.17

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Solution

The fourth proportional to 2,784.92, 3,843.45 and 1,666.17 is: 2,299.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.92 : 3,843.45 = 1,666.17 : x
  2. Step 2: Convert to fraction form
    2,784.92/3,843.45 = 1,666.17/x
  3. Step 3: Cross multiply
    2,784.92x = 3,843.45 × 1,666.17
  4. Step 4: Simplify right side
    2,784.92x = 6,403,841.09
  5. Step 5: Solve for x
    x = 6,403,841.09/2,784.92
  6. Step 6: Final answer
    x = 2,299.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.