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Finding the Fourth Proportional to 2,927.68, 4,040.18 and 1,668.94

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Solution

The fourth proportional to 2,927.68, 4,040.18 and 1,668.94 is: 2,303.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.68 : 4,040.18 = 1,668.94 : x
  2. Step 2: Convert to fraction form
    2,927.68/4,040.18 = 1,668.94/x
  3. Step 3: Cross multiply
    2,927.68x = 4,040.18 × 1,668.94
  4. Step 4: Simplify right side
    2,927.68x = 6,742,805.82
  5. Step 5: Solve for x
    x = 6,742,805.82/2,927.68
  6. Step 6: Final answer
    x = 2,303.12

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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.