Home / 5,204.12-7,805.43-1,917.20

Finding the Fourth Proportional to 5,204.12, 7,805.43 and 1,917.20

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Solution

The fourth proportional to 5,204.12, 7,805.43 and 1,917.20 is: 2,875.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,204.12 : 7,805.43 = 1,917.20 : x
  2. Step 2: Convert to fraction form
    5,204.12/7,805.43 = 1,917.20/x
  3. Step 3: Cross multiply
    5,204.12x = 7,805.43 × 1,917.20
  4. Step 4: Simplify right side
    5,204.12x = 14,964,589.91
  5. Step 5: Solve for x
    x = 14,964,589.91/5,204.12
  6. Step 6: Final answer
    x = 2,875.53

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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.