Home / 2,845.91-3,926.12-1,783.02

Finding the Fourth Proportional to 2,845.91, 3,926.12 and 1,783.02

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Solution

The fourth proportional to 2,845.91, 3,926.12 and 1,783.02 is: 2,459.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.91 : 3,926.12 = 1,783.02 : x
  2. Step 2: Convert to fraction form
    2,845.91/3,926.12 = 1,783.02/x
  3. Step 3: Cross multiply
    2,845.91x = 3,926.12 × 1,783.02
  4. Step 4: Simplify right side
    2,845.91x = 7,000,341.57
  5. Step 5: Solve for x
    x = 7,000,341.57/2,845.91
  6. Step 6: Final answer
    x = 2,459.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.