Home / 2,657.78-3,668.66-1,609.84

Finding the Fourth Proportional to 2,657.78, 3,668.66 and 1,609.84

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Solution

The fourth proportional to 2,657.78, 3,668.66 and 1,609.84 is: 2,222.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.78 : 3,668.66 = 1,609.84 : x
  2. Step 2: Convert to fraction form
    2,657.78/3,668.66 = 1,609.84/x
  3. Step 3: Cross multiply
    2,657.78x = 3,668.66 × 1,609.84
  4. Step 4: Simplify right side
    2,657.78x = 5,905,955.61
  5. Step 5: Solve for x
    x = 5,905,955.61/2,657.78
  6. Step 6: Final answer
    x = 2,222.14

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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.