Home / 4,872.20-7,310.10-4,692.20

Finding the Fourth Proportional to 4,872.20, 7,310.10 and 4,692.20

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Solution

The fourth proportional to 4,872.20, 7,310.10 and 4,692.20 is: 7,040.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872.20 : 7,310.10 = 4,692.20 : x
  2. Step 2: Convert to fraction form
    4,872.20/7,310.10 = 4,692.20/x
  3. Step 3: Cross multiply
    4,872.20x = 7,310.10 × 4,692.20
  4. Step 4: Simplify right side
    4,872.20x = 34,300,451.22
  5. Step 5: Solve for x
    x = 34,300,451.22/4,872.20
  6. Step 6: Final answer
    x = 7,040.03

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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.