Home / 7,178.12-10,765.10-2,794.60

Finding the Fourth Proportional to 7,178.12, 10,765.10 and 2,794.60

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Solution

The fourth proportional to 7,178.12, 10,765.10 and 2,794.60 is: 4,191.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.12 : 10,765.10 = 2,794.60 : x
  2. Step 2: Convert to fraction form
    7,178.12/10,765.10 = 2,794.60/x
  3. Step 3: Cross multiply
    7,178.12x = 10,765.10 × 2,794.60
  4. Step 4: Simplify right side
    7,178.12x = 30,084,148.46
  5. Step 5: Solve for x
    x = 30,084,148.46/7,178.12
  6. Step 6: Final answer
    x = 4,191.09

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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.