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Finding the Fourth Proportional to 1,668.60, 2,301.51 and 1,004.91

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Solution

The fourth proportional to 1,668.60, 2,301.51 and 1,004.91 is: 1,386.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668.60 : 2,301.51 = 1,004.91 : x
  2. Step 2: Convert to fraction form
    1,668.60/2,301.51 = 1,004.91/x
  3. Step 3: Cross multiply
    1,668.60x = 2,301.51 × 1,004.91
  4. Step 4: Simplify right side
    1,668.60x = 2,312,805.55
  5. Step 5: Solve for x
    x = 2,312,805.55/1,668.60
  6. Step 6: Final answer
    x = 1,386.08

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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.