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Finding the Fourth Proportional to 2,302.26, 3,453.74 and 915.74

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Solution

The fourth proportional to 2,302.26, 3,453.74 and 915.74 is: 1,373.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,302.26 : 3,453.74 = 915.74 : x
  2. Step 2: Convert to fraction form
    2,302.26/3,453.74 = 915.74/x
  3. Step 3: Cross multiply
    2,302.26x = 3,453.74 × 915.74
  4. Step 4: Simplify right side
    2,302.26x = 3,162,722.41
  5. Step 5: Solve for x
    x = 3,162,722.41/2,302.26
  6. Step 6: Final answer
    x = 1,373.75

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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.