Home / 5,813.80-8,720.70-4,150.60

Finding the Fourth Proportional to 5,813.80, 8,720.70 and 4,150.60

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Solution

The fourth proportional to 5,813.80, 8,720.70 and 4,150.60 is: 6,225.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,813.80 : 8,720.70 = 4,150.60 : x
  2. Step 2: Convert to fraction form
    5,813.80/8,720.70 = 4,150.60/x
  3. Step 3: Cross multiply
    5,813.80x = 8,720.70 × 4,150.60
  4. Step 4: Simplify right side
    5,813.80x = 36,196,137.42
  5. Step 5: Solve for x
    x = 36,196,137.42/5,813.80
  6. Step 6: Final answer
    x = 6,225.90

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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.