Home / 4,142.40-6,205.20-2,577.60

Finding the Fourth Proportional to 4,142.40, 6,205.20 and 2,577.60

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Solution

The fourth proportional to 4,142.40, 6,205.20 and 2,577.60 is: 3,861.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142.40 : 6,205.20 = 2,577.60 : x
  2. Step 2: Convert to fraction form
    4,142.40/6,205.20 = 2,577.60/x
  3. Step 3: Cross multiply
    4,142.40x = 6,205.20 × 2,577.60
  4. Step 4: Simplify right side
    4,142.40x = 15,994,523.52
  5. Step 5: Solve for x
    x = 15,994,523.52/4,142.40
  6. Step 6: Final answer
    x = 3,861.17

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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.