Home / 5,461.40-8,177.70-3,992.60

Finding the Fourth Proportional to 5,461.40, 8,177.70 and 3,992.60

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Solution

The fourth proportional to 5,461.40, 8,177.70 and 3,992.60 is: 5,978.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,461.40 : 8,177.70 = 3,992.60 : x
  2. Step 2: Convert to fraction form
    5,461.40/8,177.70 = 3,992.60/x
  3. Step 3: Cross multiply
    5,461.40x = 8,177.70 × 3,992.60
  4. Step 4: Simplify right side
    5,461.40x = 32,650,285.02
  5. Step 5: Solve for x
    x = 32,650,285.02/5,461.40
  6. Step 6: Final answer
    x = 5,978.37

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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.