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Finding the Fourth Proportional to 4,915.76, 7,373.74 and 1,453.12

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Solution

The fourth proportional to 4,915.76, 7,373.74 and 1,453.12 is: 2,179.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.76 : 7,373.74 = 1,453.12 : x
  2. Step 2: Convert to fraction form
    4,915.76/7,373.74 = 1,453.12/x
  3. Step 3: Cross multiply
    4,915.76x = 7,373.74 × 1,453.12
  4. Step 4: Simplify right side
    4,915.76x = 10,714,929.07
  5. Step 5: Solve for x
    x = 10,714,929.07/4,915.76
  6. Step 6: Final answer
    x = 2,179.71

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.