Home / 2,455.31-3,683.64-723.94

Finding the Fourth Proportional to 2,455.31, 3,683.64 and 723.94

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Solution

The fourth proportional to 2,455.31, 3,683.64 and 723.94 is: 1,086.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.31 : 3,683.64 = 723.94 : x
  2. Step 2: Convert to fraction form
    2,455.31/3,683.64 = 723.94/x
  3. Step 3: Cross multiply
    2,455.31x = 3,683.64 × 723.94
  4. Step 4: Simplify right side
    2,455.31x = 2,666,727.85
  5. Step 5: Solve for x
    x = 2,666,727.85/2,455.31
  6. Step 6: Final answer
    x = 1,086.11

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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.