Home / 5,185.12-7,776.28-3,541.36

Finding the Fourth Proportional to 5,185.12, 7,776.28 and 3,541.36

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Solution

The fourth proportional to 5,185.12, 7,776.28 and 3,541.36 is: 5,311.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.12 : 7,776.28 = 3,541.36 : x
  2. Step 2: Convert to fraction form
    5,185.12/7,776.28 = 3,541.36/x
  3. Step 3: Cross multiply
    5,185.12x = 7,776.28 × 3,541.36
  4. Step 4: Simplify right side
    5,185.12x = 27,538,606.94
  5. Step 5: Solve for x
    x = 27,538,606.94/5,185.12
  6. Step 6: Final answer
    x = 5,311.08

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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.