Home / 5,519.70-8,279.55-4,790.70

Finding the Fourth Proportional to 5,519.70, 8,279.55 and 4,790.70

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Solution

The fourth proportional to 5,519.70, 8,279.55 and 4,790.70 is: 7,186.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.70 : 8,279.55 = 4,790.70 : x
  2. Step 2: Convert to fraction form
    5,519.70/8,279.55 = 4,790.70/x
  3. Step 3: Cross multiply
    5,519.70x = 8,279.55 × 4,790.70
  4. Step 4: Simplify right side
    5,519.70x = 39,664,840.19
  5. Step 5: Solve for x
    x = 39,664,840.19/5,519.70
  6. Step 6: Final answer
    x = 7,186.05

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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.