Home / 4,115.50-6,174.88-1,518.64

Finding the Fourth Proportional to 4,115.50, 6,174.88 and 1,518.64

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Solution

The fourth proportional to 4,115.50, 6,174.88 and 1,518.64 is: 2,278.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,115.50 : 6,174.88 = 1,518.64 : x
  2. Step 2: Convert to fraction form
    4,115.50/6,174.88 = 1,518.64/x
  3. Step 3: Cross multiply
    4,115.50x = 6,174.88 × 1,518.64
  4. Step 4: Simplify right side
    4,115.50x = 9,377,419.76
  5. Step 5: Solve for x
    x = 9,377,419.76/4,115.50
  6. Step 6: Final answer
    x = 2,278.56

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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.