Home / 4,922.20-7,388.10-2,459.80

Finding the Fourth Proportional to 4,922.20, 7,388.10 and 2,459.80

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Solution

The fourth proportional to 4,922.20, 7,388.10 and 2,459.80 is: 3,692.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,922.20 : 7,388.10 = 2,459.80 : x
  2. Step 2: Convert to fraction form
    4,922.20/7,388.10 = 2,459.80/x
  3. Step 3: Cross multiply
    4,922.20x = 7,388.10 × 2,459.80
  4. Step 4: Simplify right side
    4,922.20x = 18,173,248.38
  5. Step 5: Solve for x
    x = 18,173,248.38/4,922.20
  6. Step 6: Final answer
    x = 3,692.10

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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.