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Finding the Fourth Proportional to 2,274.86, 3,412.29 and 714.98

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Solution

The fourth proportional to 2,274.86, 3,412.29 and 714.98 is: 1,072.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,274.86 : 3,412.29 = 714.98 : x
  2. Step 2: Convert to fraction form
    2,274.86/3,412.29 = 714.98/x
  3. Step 3: Cross multiply
    2,274.86x = 3,412.29 × 714.98
  4. Step 4: Simplify right side
    2,274.86x = 2,439,719.10
  5. Step 5: Solve for x
    x = 2,439,719.10/2,274.86
  6. Step 6: Final answer
    x = 1,072.47

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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.