Home / 2,867.12-3,957.44-1,858.79

Finding the Fourth Proportional to 2,867.12, 3,957.44 and 1,858.79

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Solution

The fourth proportional to 2,867.12, 3,957.44 and 1,858.79 is: 2,565.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867.12 : 3,957.44 = 1,858.79 : x
  2. Step 2: Convert to fraction form
    2,867.12/3,957.44 = 1,858.79/x
  3. Step 3: Cross multiply
    2,867.12x = 3,957.44 × 1,858.79
  4. Step 4: Simplify right side
    2,867.12x = 7,356,034.76
  5. Step 5: Solve for x
    x = 7,356,034.76/2,867.12
  6. Step 6: Final answer
    x = 2,565.66

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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.