Home / 2,519.28-3,780.16-1,133.60

Finding the Fourth Proportional to 2,519.28, 3,780.16 and 1,133.60

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Solution

The fourth proportional to 2,519.28, 3,780.16 and 1,133.60 is: 1,700.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.28 : 3,780.16 = 1,133.60 : x
  2. Step 2: Convert to fraction form
    2,519.28/3,780.16 = 1,133.60/x
  3. Step 3: Cross multiply
    2,519.28x = 3,780.16 × 1,133.60
  4. Step 4: Simplify right side
    2,519.28x = 4,285,189.38
  5. Step 5: Solve for x
    x = 4,285,189.38/2,519.28
  6. Step 6: Final answer
    x = 1,700.96

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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.