Home / 2,927.93-4,040.55-1,668.78

Finding the Fourth Proportional to 2,927.93, 4,040.55 and 1,668.78

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Solution

The fourth proportional to 2,927.93, 4,040.55 and 1,668.78 is: 2,302.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.93 : 4,040.55 = 1,668.78 : x
  2. Step 2: Convert to fraction form
    2,927.93/4,040.55 = 1,668.78/x
  3. Step 3: Cross multiply
    2,927.93x = 4,040.55 × 1,668.78
  4. Step 4: Simplify right side
    2,927.93x = 6,742,789.03
  5. Step 5: Solve for x
    x = 6,742,789.03/2,927.93
  6. Step 6: Final answer
    x = 2,302.92

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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.