Home / 1,905.70-2,858.54-607.14

Finding the Fourth Proportional to 1,905.70, 2,858.54 and 607.14

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Solution

The fourth proportional to 1,905.70, 2,858.54 and 607.14 is: 910.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.70 : 2,858.54 = 607.14 : x
  2. Step 2: Convert to fraction form
    1,905.70/2,858.54 = 607.14/x
  3. Step 3: Cross multiply
    1,905.70x = 2,858.54 × 607.14
  4. Step 4: Simplify right side
    1,905.70x = 1,735,533.98
  5. Step 5: Solve for x
    x = 1,735,533.98/1,905.70
  6. Step 6: Final answer
    x = 910.71

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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.