Home / 5,619.73-8,427.54-1,920.97

Finding the Fourth Proportional to 5,619.73, 8,427.54 and 1,920.97

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Solution

The fourth proportional to 5,619.73, 8,427.54 and 1,920.97 is: 2,880.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.73 : 8,427.54 = 1,920.97 : x
  2. Step 2: Convert to fraction form
    5,619.73/8,427.54 = 1,920.97/x
  3. Step 3: Cross multiply
    5,619.73x = 8,427.54 × 1,920.97
  4. Step 4: Simplify right side
    5,619.73x = 16,189,051.51
  5. Step 5: Solve for x
    x = 16,189,051.51/5,619.73
  6. Step 6: Final answer
    x = 2,880.75

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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.