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Finding the Fourth Proportional to 4,881.76, 7,322.53 and 1,371.72

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Solution

The fourth proportional to 4,881.76, 7,322.53 and 1,371.72 is: 2,057.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,881.76 : 7,322.53 = 1,371.72 : x
  2. Step 2: Convert to fraction form
    4,881.76/7,322.53 = 1,371.72/x
  3. Step 3: Cross multiply
    4,881.76x = 7,322.53 × 1,371.72
  4. Step 4: Simplify right side
    4,881.76x = 10,044,460.85
  5. Step 5: Solve for x
    x = 10,044,460.85/4,881.76
  6. Step 6: Final answer
    x = 2,057.55

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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.