Home / 4,905.92-7,358.16-1,619.12

Finding the Fourth Proportional to 4,905.92, 7,358.16 and 1,619.12

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Solution

The fourth proportional to 4,905.92, 7,358.16 and 1,619.12 is: 2,428.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.92 : 7,358.16 = 1,619.12 : x
  2. Step 2: Convert to fraction form
    4,905.92/7,358.16 = 1,619.12/x
  3. Step 3: Cross multiply
    4,905.92x = 7,358.16 × 1,619.12
  4. Step 4: Simplify right side
    4,905.92x = 11,913,744.02
  5. Step 5: Solve for x
    x = 11,913,744.02/4,905.92
  6. Step 6: Final answer
    x = 2,428.44

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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.