Home / 5,407.49-8,112.31-2,287.48

Finding the Fourth Proportional to 5,407.49, 8,112.31 and 2,287.48

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Solution

The fourth proportional to 5,407.49, 8,112.31 and 2,287.48 is: 3,431.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.49 : 8,112.31 = 2,287.48 : x
  2. Step 2: Convert to fraction form
    5,407.49/8,112.31 = 2,287.48/x
  3. Step 3: Cross multiply
    5,407.49x = 8,112.31 × 2,287.48
  4. Step 4: Simplify right side
    5,407.49x = 18,556,746.88
  5. Step 5: Solve for x
    x = 18,556,746.88/5,407.49
  6. Step 6: Final answer
    x = 3,431.68

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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.