Home / 2,859.94-3,946.35-1,680.58

Finding the Fourth Proportional to 2,859.94, 3,946.35 and 1,680.58

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Solution

The fourth proportional to 2,859.94, 3,946.35 and 1,680.58 is: 2,318.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.94 : 3,946.35 = 1,680.58 : x
  2. Step 2: Convert to fraction form
    2,859.94/3,946.35 = 1,680.58/x
  3. Step 3: Cross multiply
    2,859.94x = 3,946.35 × 1,680.58
  4. Step 4: Simplify right side
    2,859.94x = 6,632,156.88
  5. Step 5: Solve for x
    x = 6,632,156.88/2,859.94
  6. Step 6: Final answer
    x = 2,318.98

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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.