Home / 5,182.82-7,774.15-1,287.26

Finding the Fourth Proportional to 5,182.82, 7,774.15 and 1,287.26

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Solution

The fourth proportional to 5,182.82, 7,774.15 and 1,287.26 is: 1,930.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,182.82 : 7,774.15 = 1,287.26 : x
  2. Step 2: Convert to fraction form
    5,182.82/7,774.15 = 1,287.26/x
  3. Step 3: Cross multiply
    5,182.82x = 7,774.15 × 1,287.26
  4. Step 4: Simplify right side
    5,182.82x = 10,007,352.33
  5. Step 5: Solve for x
    x = 10,007,352.33/5,182.82
  6. Step 6: Final answer
    x = 1,930.87

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1.5x scale

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.