Home / 7,179.12-9,907.65-4,154.85

Finding the Fourth Proportional to 7,179.12, 9,907.65 and 4,154.85

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Solution

The fourth proportional to 7,179.12, 9,907.65 and 4,154.85 is: 5,733.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.12 : 9,907.65 = 4,154.85 : x
  2. Step 2: Convert to fraction form
    7,179.12/9,907.65 = 4,154.85/x
  3. Step 3: Cross multiply
    7,179.12x = 9,907.65 × 4,154.85
  4. Step 4: Simplify right side
    7,179.12x = 41,164,799.60
  5. Step 5: Solve for x
    x = 41,164,799.60/7,179.12
  6. Step 6: Final answer
    x = 5,733.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.