Home / 7,178.96-10,771.20-2,799.52

Finding the Fourth Proportional to 7,178.96, 10,771.20 and 2,799.52

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Solution

The fourth proportional to 7,178.96, 10,771.20 and 2,799.52 is: 4,200.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.96 : 10,771.20 = 2,799.52 : x
  2. Step 2: Convert to fraction form
    7,178.96/10,771.20 = 2,799.52/x
  3. Step 3: Cross multiply
    7,178.96x = 10,771.20 × 2,799.52
  4. Step 4: Simplify right side
    7,178.96x = 30,154,189.82
  5. Step 5: Solve for x
    x = 30,154,189.82/7,178.96
  6. Step 6: Final answer
    x = 4,200.36

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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.