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Finding the Fourth Proportional to 2,913.84, 4,019.10 and 1,734

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Solution

The fourth proportional to 2,913.84, 4,019.10 and 1,734 is: 2,391.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.84 : 4,019.10 = 1,734 : x
  2. Step 2: Convert to fraction form
    2,913.84/4,019.10 = 1,734/x
  3. Step 3: Cross multiply
    2,913.84x = 4,019.10 × 1,734
  4. Step 4: Simplify right side
    2,913.84x = 6,969,119.40
  5. Step 5: Solve for x
    x = 6,969,119.40/2,913.84
  6. Step 6: Final answer
    x = 2,391.73

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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.