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Finding the Fourth Proportional to 2,915.64, 4,373.88 and 1,682.84

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Solution

The fourth proportional to 2,915.64, 4,373.88 and 1,682.84 is: 2,524.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.64 : 4,373.88 = 1,682.84 : x
  2. Step 2: Convert to fraction form
    2,915.64/4,373.88 = 1,682.84/x
  3. Step 3: Cross multiply
    2,915.64x = 4,373.88 × 1,682.84
  4. Step 4: Simplify right side
    2,915.64x = 7,360,540.22
  5. Step 5: Solve for x
    x = 7,360,540.22/2,915.64
  6. Step 6: Final answer
    x = 2,524.50

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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.