Home / 5,485.10-8,227.65-5,117.90

Finding the Fourth Proportional to 5,485.10, 8,227.65 and 5,117.90

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Solution

The fourth proportional to 5,485.10, 8,227.65 and 5,117.90 is: 7,676.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.10 : 8,227.65 = 5,117.90 : x
  2. Step 2: Convert to fraction form
    5,485.10/8,227.65 = 5,117.90/x
  3. Step 3: Cross multiply
    5,485.10x = 8,227.65 × 5,117.90
  4. Step 4: Simplify right side
    5,485.10x = 42,108,289.94
  5. Step 5: Solve for x
    x = 42,108,289.94/5,485.10
  6. Step 6: Final answer
    x = 7,676.85

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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.