Home / 3,776.47-5,664.75-1,311.34

Finding the Fourth Proportional to 3,776.47, 5,664.75 and 1,311.34

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Solution

The fourth proportional to 3,776.47, 5,664.75 and 1,311.34 is: 1,967.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,776.47 : 5,664.75 = 1,311.34 : x
  2. Step 2: Convert to fraction form
    3,776.47/5,664.75 = 1,311.34/x
  3. Step 3: Cross multiply
    3,776.47x = 5,664.75 × 1,311.34
  4. Step 4: Simplify right side
    3,776.47x = 7,428,384.94
  5. Step 5: Solve for x
    x = 7,428,384.94/3,776.47
  6. Step 6: Final answer
    x = 1,967.02

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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.