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Finding the Fourth Proportional to 2,906.10, 4,359.11 and 714.84

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Solution

The fourth proportional to 2,906.10, 4,359.11 and 714.84 is: 1,072.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,906.10 : 4,359.11 = 714.84 : x
  2. Step 2: Convert to fraction form
    2,906.10/4,359.11 = 714.84/x
  3. Step 3: Cross multiply
    2,906.10x = 4,359.11 × 714.84
  4. Step 4: Simplify right side
    2,906.10x = 3,116,073.52
  5. Step 5: Solve for x
    x = 3,116,073.52/2,906.10
  6. Step 6: Final answer
    x = 1,072.25

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1.5x scale

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.