Home / 5,845.80-8,765.40-5,154.12

Finding the Fourth Proportional to 5,845.80, 8,765.40 and 5,154.12

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Solution

The fourth proportional to 5,845.80, 8,765.40 and 5,154.12 is: 7,728.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,845.80 : 8,765.40 = 5,154.12 : x
  2. Step 2: Convert to fraction form
    5,845.80/8,765.40 = 5,154.12/x
  3. Step 3: Cross multiply
    5,845.80x = 8,765.40 × 5,154.12
  4. Step 4: Simplify right side
    5,845.80x = 45,177,923.45
  5. Step 5: Solve for x
    x = 45,177,923.45/5,845.80
  6. Step 6: Final answer
    x = 7,728.27

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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.