Home / 5,211.80-7,817.70-4,674.20

Finding the Fourth Proportional to 5,211.80, 7,817.70 and 4,674.20

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Solution

The fourth proportional to 5,211.80, 7,817.70 and 4,674.20 is: 7,011.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.80 : 7,817.70 = 4,674.20 : x
  2. Step 2: Convert to fraction form
    5,211.80/7,817.70 = 4,674.20/x
  3. Step 3: Cross multiply
    5,211.80x = 7,817.70 × 4,674.20
  4. Step 4: Simplify right side
    5,211.80x = 36,541,493.34
  5. Step 5: Solve for x
    x = 36,541,493.34/5,211.80
  6. Step 6: Final answer
    x = 7,011.30

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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.