Home / 2,927.75-4,039.86-1,668.92

Finding the Fourth Proportional to 2,927.75, 4,039.86 and 1,668.92

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Solution

The fourth proportional to 2,927.75, 4,039.86 and 1,668.92 is: 2,302.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.75 : 4,039.86 = 1,668.92 : x
  2. Step 2: Convert to fraction form
    2,927.75/4,039.86 = 1,668.92/x
  3. Step 3: Cross multiply
    2,927.75x = 4,039.86 × 1,668.92
  4. Step 4: Simplify right side
    2,927.75x = 6,742,181.98
  5. Step 5: Solve for x
    x = 6,742,181.98/2,927.75
  6. Step 6: Final answer
    x = 2,302.85

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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.