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Finding the Fourth Proportional to 2,445.80, 3,668.73 and 714.42

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Solution

The fourth proportional to 2,445.80, 3,668.73 and 714.42 is: 1,071.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.80 : 3,668.73 = 714.42 : x
  2. Step 2: Convert to fraction form
    2,445.80/3,668.73 = 714.42/x
  3. Step 3: Cross multiply
    2,445.80x = 3,668.73 × 714.42
  4. Step 4: Simplify right side
    2,445.80x = 2,621,011.41
  5. Step 5: Solve for x
    x = 2,621,011.41/2,445.80
  6. Step 6: Final answer
    x = 1,071.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.