Home / 5,407.59-8,112.21-2,287.60

Finding the Fourth Proportional to 5,407.59, 8,112.21 and 2,287.60

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Solution

The fourth proportional to 5,407.59, 8,112.21 and 2,287.60 is: 3,431.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.59 : 8,112.21 = 2,287.60 : x
  2. Step 2: Convert to fraction form
    5,407.59/8,112.21 = 2,287.60/x
  3. Step 3: Cross multiply
    5,407.59x = 8,112.21 × 2,287.60
  4. Step 4: Simplify right side
    5,407.59x = 18,557,491.60
  5. Step 5: Solve for x
    x = 18,557,491.60/5,407.59
  6. Step 6: Final answer
    x = 3,431.75

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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.