Home / 3,639.86-5,458.64-1,174.13

Finding the Fourth Proportional to 3,639.86, 5,458.64 and 1,174.13

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Solution

The fourth proportional to 3,639.86, 5,458.64 and 1,174.13 is: 1,760.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.86 : 5,458.64 = 1,174.13 : x
  2. Step 2: Convert to fraction form
    3,639.86/5,458.64 = 1,174.13/x
  3. Step 3: Cross multiply
    3,639.86x = 5,458.64 × 1,174.13
  4. Step 4: Simplify right side
    3,639.86x = 6,409,119.82
  5. Step 5: Solve for x
    x = 6,409,119.82/3,639.86
  6. Step 6: Final answer
    x = 1,760.82

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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.