Home / 5,369.72-7,409.50-2,979.66

Finding the Fourth Proportional to 5,369.72, 7,409.50 and 2,979.66

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Solution

The fourth proportional to 5,369.72, 7,409.50 and 2,979.66 is: 4,111.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,369.72 : 7,409.50 = 2,979.66 : x
  2. Step 2: Convert to fraction form
    5,369.72/7,409.50 = 2,979.66/x
  3. Step 3: Cross multiply
    5,369.72x = 7,409.50 × 2,979.66
  4. Step 4: Simplify right side
    5,369.72x = 22,077,790.77
  5. Step 5: Solve for x
    x = 22,077,790.77/5,369.72
  6. Step 6: Final answer
    x = 4,111.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.