Home / 2,455.29-3,683.55-723.91

Finding the Fourth Proportional to 2,455.29, 3,683.55 and 723.91

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Solution

The fourth proportional to 2,455.29, 3,683.55 and 723.91 is: 1,086.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.29 : 3,683.55 = 723.91 : x
  2. Step 2: Convert to fraction form
    2,455.29/3,683.55 = 723.91/x
  3. Step 3: Cross multiply
    2,455.29x = 3,683.55 × 723.91
  4. Step 4: Simplify right side
    2,455.29x = 2,666,558.68
  5. Step 5: Solve for x
    x = 2,666,558.68/2,455.29
  6. Step 6: Final answer
    x = 1,086.05

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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.