Home / 4,850.64-7,275.96-1,387.89

Finding the Fourth Proportional to 4,850.64, 7,275.96 and 1,387.89

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Solution

The fourth proportional to 4,850.64, 7,275.96 and 1,387.89 is: 2,081.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,850.64 : 7,275.96 = 1,387.89 : x
  2. Step 2: Convert to fraction form
    4,850.64/7,275.96 = 1,387.89/x
  3. Step 3: Cross multiply
    4,850.64x = 7,275.96 × 1,387.89
  4. Step 4: Simplify right side
    4,850.64x = 10,098,232.12
  5. Step 5: Solve for x
    x = 10,098,232.12/4,850.64
  6. Step 6: Final answer
    x = 2,081.84

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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.