Home / 1,487.24-2,050.94-1,189.46

Finding the Fourth Proportional to 1,487.24, 2,050.94 and 1,189.46

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Solution

The fourth proportional to 1,487.24, 2,050.94 and 1,189.46 is: 1,640.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.24 : 2,050.94 = 1,189.46 : x
  2. Step 2: Convert to fraction form
    1,487.24/2,050.94 = 1,189.46/x
  3. Step 3: Cross multiply
    1,487.24x = 2,050.94 × 1,189.46
  4. Step 4: Simplify right side
    1,487.24x = 2,439,511.09
  5. Step 5: Solve for x
    x = 2,439,511.09/1,487.24
  6. Step 6: Final answer
    x = 1,640.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.