Home / 5,457.20-8,169.60-3,610.40

Finding the Fourth Proportional to 5,457.20, 8,169.60 and 3,610.40

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Solution

The fourth proportional to 5,457.20, 8,169.60 and 3,610.40 is: 5,404.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.20 : 8,169.60 = 3,610.40 : x
  2. Step 2: Convert to fraction form
    5,457.20/8,169.60 = 3,610.40/x
  3. Step 3: Cross multiply
    5,457.20x = 8,169.60 × 3,610.40
  4. Step 4: Simplify right side
    5,457.20x = 29,495,523.84
  5. Step 5: Solve for x
    x = 29,495,523.84/5,457.20
  6. Step 6: Final answer
    x = 5,404.88

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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.