Home / 4,781.77-7,171.57-1,819.60

Finding the Fourth Proportional to 4,781.77, 7,171.57 and 1,819.60

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Solution

The fourth proportional to 4,781.77, 7,171.57 and 1,819.60 is: 2,728.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.77 : 7,171.57 = 1,819.60 : x
  2. Step 2: Convert to fraction form
    4,781.77/7,171.57 = 1,819.60/x
  3. Step 3: Cross multiply
    4,781.77x = 7,171.57 × 1,819.60
  4. Step 4: Simplify right side
    4,781.77x = 13,049,373.12
  5. Step 5: Solve for x
    x = 13,049,373.12/4,781.77
  6. Step 6: Final answer
    x = 2,728.99

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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.