Home / 5,814.80-8,722.20-4,186.70

Finding the Fourth Proportional to 5,814.80, 8,722.20 and 4,186.70

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Solution

The fourth proportional to 5,814.80, 8,722.20 and 4,186.70 is: 6,280.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,814.80 : 8,722.20 = 4,186.70 : x
  2. Step 2: Convert to fraction form
    5,814.80/8,722.20 = 4,186.70/x
  3. Step 3: Cross multiply
    5,814.80x = 8,722.20 × 4,186.70
  4. Step 4: Simplify right side
    5,814.80x = 36,517,234.74
  5. Step 5: Solve for x
    x = 36,517,234.74/5,814.80
  6. Step 6: Final answer
    x = 6,280.05

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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.