Home / 1,906.04-2,859.20-810.28

Finding the Fourth Proportional to 1,906.04, 2,859.20 and 810.28

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Solution

The fourth proportional to 1,906.04, 2,859.20 and 810.28 is: 1,215.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.04 : 2,859.20 = 810.28 : x
  2. Step 2: Convert to fraction form
    1,906.04/2,859.20 = 810.28/x
  3. Step 3: Cross multiply
    1,906.04x = 2,859.20 × 810.28
  4. Step 4: Simplify right side
    1,906.04x = 2,316,752.58
  5. Step 5: Solve for x
    x = 2,316,752.58/1,906.04
  6. Step 6: Final answer
    x = 1,215.48

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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.