Home / 5,487.36-8,231.16-1,789.60

Finding the Fourth Proportional to 5,487.36, 8,231.16 and 1,789.60

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Solution

The fourth proportional to 5,487.36, 8,231.16 and 1,789.60 is: 2,684.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,487.36 : 8,231.16 = 1,789.60 : x
  2. Step 2: Convert to fraction form
    5,487.36/8,231.16 = 1,789.60/x
  3. Step 3: Cross multiply
    5,487.36x = 8,231.16 × 1,789.60
  4. Step 4: Simplify right side
    5,487.36x = 14,730,483.94
  5. Step 5: Solve for x
    x = 14,730,483.94/5,487.36
  6. Step 6: Final answer
    x = 2,684.44

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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.