Home / 2,605.54-3,904.67-1,871.68

Finding the Fourth Proportional to 2,605.54, 3,904.67 and 1,871.68

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Solution

The fourth proportional to 2,605.54, 3,904.67 and 1,871.68 is: 2,804.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605.54 : 3,904.67 = 1,871.68 : x
  2. Step 2: Convert to fraction form
    2,605.54/3,904.67 = 1,871.68/x
  3. Step 3: Cross multiply
    2,605.54x = 3,904.67 × 1,871.68
  4. Step 4: Simplify right side
    2,605.54x = 7,308,292.75
  5. Step 5: Solve for x
    x = 7,308,292.75/2,605.54
  6. Step 6: Final answer
    x = 2,804.91

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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.