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Finding the Fourth Proportional to 5,559.64, 7,668.03 and 3,880.51

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Solution

The fourth proportional to 5,559.64, 7,668.03 and 3,880.51 is: 5,352.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,559.64 : 7,668.03 = 3,880.51 : x
  2. Step 2: Convert to fraction form
    5,559.64/7,668.03 = 3,880.51/x
  3. Step 3: Cross multiply
    5,559.64x = 7,668.03 × 3,880.51
  4. Step 4: Simplify right side
    5,559.64x = 29,755,867.10
  5. Step 5: Solve for x
    x = 29,755,867.10/5,559.64
  6. Step 6: Final answer
    x = 5,352.12

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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.