Home / 1,259.94-1,887.39-1,000.38

Finding the Fourth Proportional to 1,259.94, 1,887.39 and 1,000.38

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Solution

The fourth proportional to 1,259.94, 1,887.39 and 1,000.38 is: 1,498.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259.94 : 1,887.39 = 1,000.38 : x
  2. Step 2: Convert to fraction form
    1,259.94/1,887.39 = 1,000.38/x
  3. Step 3: Cross multiply
    1,259.94x = 1,887.39 × 1,000.38
  4. Step 4: Simplify right side
    1,259.94x = 1,888,107.21
  5. Step 5: Solve for x
    x = 1,888,107.21/1,259.94
  6. Step 6: Final answer
    x = 1,498.57

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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.