Home / 2,910.15-4,013.76-1,964.45

Finding the Fourth Proportional to 2,910.15, 4,013.76 and 1,964.45

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Solution

The fourth proportional to 2,910.15, 4,013.76 and 1,964.45 is: 2,709.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.15 : 4,013.76 = 1,964.45 : x
  2. Step 2: Convert to fraction form
    2,910.15/4,013.76 = 1,964.45/x
  3. Step 3: Cross multiply
    2,910.15x = 4,013.76 × 1,964.45
  4. Step 4: Simplify right side
    2,910.15x = 7,884,813.32
  5. Step 5: Solve for x
    x = 7,884,813.32/2,910.15
  6. Step 6: Final answer
    x = 2,709.42

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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.