Home / 7,339.68-11,011.20-3,180.38

Finding the Fourth Proportional to 7,339.68, 11,011.20 and 3,180.38

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Solution

The fourth proportional to 7,339.68, 11,011.20 and 3,180.38 is: 4,771.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,339.68 : 11,011.20 = 3,180.38 : x
  2. Step 2: Convert to fraction form
    7,339.68/11,011.20 = 3,180.38/x
  3. Step 3: Cross multiply
    7,339.68x = 11,011.20 × 3,180.38
  4. Step 4: Simplify right side
    7,339.68x = 35,019,800.26
  5. Step 5: Solve for x
    x = 35,019,800.26/7,339.68
  6. Step 6: Final answer
    x = 4,771.30

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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.