Home / 5,110.85-7,660.51-2,605.00

Finding the Fourth Proportional to 5,110.85, 7,660.51 and 2,605.00

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Solution

The fourth proportional to 5,110.85, 7,660.51 and 2,605.00 is: 3,904.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.85 : 7,660.51 = 2,605.00 : x
  2. Step 2: Convert to fraction form
    5,110.85/7,660.51 = 2,605.00/x
  3. Step 3: Cross multiply
    5,110.85x = 7,660.51 × 2,605.00
  4. Step 4: Simplify right side
    5,110.85x = 19,955,617.25
  5. Step 5: Solve for x
    x = 19,955,617.25/5,110.85
  6. Step 6: Final answer
    x = 3,904.56

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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.