Home / 2,877.12-4,323.47-1,561.73

Finding the Fourth Proportional to 2,877.12, 4,323.47 and 1,561.73

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Solution

The fourth proportional to 2,877.12, 4,323.47 and 1,561.73 is: 2,346.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.12 : 4,323.47 = 1,561.73 : x
  2. Step 2: Convert to fraction form
    2,877.12/4,323.47 = 1,561.73/x
  3. Step 3: Cross multiply
    2,877.12x = 4,323.47 × 1,561.73
  4. Step 4: Simplify right side
    2,877.12x = 6,752,063.38
  5. Step 5: Solve for x
    x = 6,752,063.38/2,877.12
  6. Step 6: Final answer
    x = 2,346.81

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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.