Home / 2,910.12-4,015.86-1,583.79

Finding the Fourth Proportional to 2,910.12, 4,015.86 and 1,583.79

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Solution

The fourth proportional to 2,910.12, 4,015.86 and 1,583.79 is: 2,185.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.12 : 4,015.86 = 1,583.79 : x
  2. Step 2: Convert to fraction form
    2,910.12/4,015.86 = 1,583.79/x
  3. Step 3: Cross multiply
    2,910.12x = 4,015.86 × 1,583.79
  4. Step 4: Simplify right side
    2,910.12x = 6,360,278.91
  5. Step 5: Solve for x
    x = 6,360,278.91/2,910.12
  6. Step 6: Final answer
    x = 2,185.57

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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.