Home / 1,294.47-1,784.25-999.27

Finding the Fourth Proportional to 1,294.47, 1,784.25 and 999.27

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Solution

The fourth proportional to 1,294.47, 1,784.25 and 999.27 is: 1,377.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294.47 : 1,784.25 = 999.27 : x
  2. Step 2: Convert to fraction form
    1,294.47/1,784.25 = 999.27/x
  3. Step 3: Cross multiply
    1,294.47x = 1,784.25 × 999.27
  4. Step 4: Simplify right side
    1,294.47x = 1,782,947.50
  5. Step 5: Solve for x
    x = 1,782,947.50/1,294.47
  6. Step 6: Final answer
    x = 1,377.36

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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.