Home / 1,668.14-2,302.18-1,004.90

Finding the Fourth Proportional to 1,668.14, 2,302.18 and 1,004.90

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Solution

The fourth proportional to 1,668.14, 2,302.18 and 1,004.90 is: 1,386.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668.14 : 2,302.18 = 1,004.90 : x
  2. Step 2: Convert to fraction form
    1,668.14/2,302.18 = 1,004.90/x
  3. Step 3: Cross multiply
    1,668.14x = 2,302.18 × 1,004.90
  4. Step 4: Simplify right side
    1,668.14x = 2,313,460.68
  5. Step 5: Solve for x
    x = 2,313,460.68/1,668.14
  6. Step 6: Final answer
    x = 1,386.85

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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.