Home / 7,178.12-10,771.34-3,017.80

Finding the Fourth Proportional to 7,178.12, 10,771.34 and 3,017.80

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Solution

The fourth proportional to 7,178.12, 10,771.34 and 3,017.80 is: 4,528.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.12 : 10,771.34 = 3,017.80 : x
  2. Step 2: Convert to fraction form
    7,178.12/10,771.34 = 3,017.80/x
  3. Step 3: Cross multiply
    7,178.12x = 10,771.34 × 3,017.80
  4. Step 4: Simplify right side
    7,178.12x = 32,505,749.85
  5. Step 5: Solve for x
    x = 32,505,749.85/7,178.12
  6. Step 6: Final answer
    x = 4,528.45

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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.