Home / 2,927.21-4,039.65-1,668.56

Finding the Fourth Proportional to 2,927.21, 4,039.65 and 1,668.56

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Solution

The fourth proportional to 2,927.21, 4,039.65 and 1,668.56 is: 2,302.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.21 : 4,039.65 = 1,668.56 : x
  2. Step 2: Convert to fraction form
    2,927.21/4,039.65 = 1,668.56/x
  3. Step 3: Cross multiply
    2,927.21x = 4,039.65 × 1,668.56
  4. Step 4: Simplify right side
    2,927.21x = 6,740,378.21
  5. Step 5: Solve for x
    x = 6,740,378.21/2,927.21
  6. Step 6: Final answer
    x = 2,302.66

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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.