Home / 1,864.09-2,797.76-1,215.73

Finding the Fourth Proportional to 1,864.09, 2,797.76 and 1,215.73

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Solution

The fourth proportional to 1,864.09, 2,797.76 and 1,215.73 is: 1,824.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.09 : 2,797.76 = 1,215.73 : x
  2. Step 2: Convert to fraction form
    1,864.09/2,797.76 = 1,215.73/x
  3. Step 3: Cross multiply
    1,864.09x = 2,797.76 × 1,215.73
  4. Step 4: Simplify right side
    1,864.09x = 3,401,320.76
  5. Step 5: Solve for x
    x = 3,401,320.76/1,864.09
  6. Step 6: Final answer
    x = 1,824.65

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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.