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Finding the Fourth Proportional to 4,856.63, 7,284.96 and 1,393.88

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Solution

The fourth proportional to 4,856.63, 7,284.96 and 1,393.88 is: 2,090.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,856.63 : 7,284.96 = 1,393.88 : x
  2. Step 2: Convert to fraction form
    4,856.63/7,284.96 = 1,393.88/x
  3. Step 3: Cross multiply
    4,856.63x = 7,284.96 × 1,393.88
  4. Step 4: Simplify right side
    4,856.63x = 10,154,323.62
  5. Step 5: Solve for x
    x = 10,154,323.62/4,856.63
  6. Step 6: Final answer
    x = 2,090.82

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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.