Home / 4,905.71-7,358.81-1,619.06

Finding the Fourth Proportional to 4,905.71, 7,358.81 and 1,619.06

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Solution

The fourth proportional to 4,905.71, 7,358.81 and 1,619.06 is: 2,428.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.71 : 7,358.81 = 1,619.06 : x
  2. Step 2: Convert to fraction form
    4,905.71/7,358.81 = 1,619.06/x
  3. Step 3: Cross multiply
    4,905.71x = 7,358.81 × 1,619.06
  4. Step 4: Simplify right side
    4,905.71x = 11,914,332.87
  5. Step 5: Solve for x
    x = 11,914,332.87/4,905.71
  6. Step 6: Final answer
    x = 2,428.67

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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.