Home / 5,138.95-7,105.58-4,482.85

Finding the Fourth Proportional to 5,138.95, 7,105.58 and 4,482.85

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Solution

The fourth proportional to 5,138.95, 7,105.58 and 4,482.85 is: 6,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.95 : 7,105.58 = 4,482.85 : x
  2. Step 2: Convert to fraction form
    5,138.95/7,105.58 = 4,482.85/x
  3. Step 3: Cross multiply
    5,138.95x = 7,105.58 × 4,482.85
  4. Step 4: Simplify right side
    5,138.95x = 31,853,249.30
  5. Step 5: Solve for x
    x = 31,853,249.30/5,138.95
  6. Step 6: Final answer
    x = 6,198.40

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Double scale
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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.