Home / 5,187.32-7,765.84-3,859.00

Finding the Fourth Proportional to 5,187.32, 7,765.84 and 3,859.00

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Solution

The fourth proportional to 5,187.32, 7,765.84 and 3,859.00 is: 5,777.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.32 : 7,765.84 = 3,859.00 : x
  2. Step 2: Convert to fraction form
    5,187.32/7,765.84 = 3,859.00/x
  3. Step 3: Cross multiply
    5,187.32x = 7,765.84 × 3,859.00
  4. Step 4: Simplify right side
    5,187.32x = 29,968,394.84
  5. Step 5: Solve for x
    x = 29,968,394.84/5,187.32
  6. Step 6: Final answer
    x = 5,777.24

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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.