Home / 1,298.38-1,947.96-605.46

Finding the Fourth Proportional to 1,298.38, 1,947.96 and 605.46

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Solution

The fourth proportional to 1,298.38, 1,947.96 and 605.46 is: 908.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298.38 : 1,947.96 = 605.46 : x
  2. Step 2: Convert to fraction form
    1,298.38/1,947.96 = 605.46/x
  3. Step 3: Cross multiply
    1,298.38x = 1,947.96 × 605.46
  4. Step 4: Simplify right side
    1,298.38x = 1,179,411.86
  5. Step 5: Solve for x
    x = 1,179,411.86/1,298.38
  6. Step 6: Final answer
    x = 908.37

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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.