Home / 4,921.27-7,382.86-1,590.42

Finding the Fourth Proportional to 4,921.27, 7,382.86 and 1,590.42

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Solution

The fourth proportional to 4,921.27, 7,382.86 and 1,590.42 is: 2,385.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.27 : 7,382.86 = 1,590.42 : x
  2. Step 2: Convert to fraction form
    4,921.27/7,382.86 = 1,590.42/x
  3. Step 3: Cross multiply
    4,921.27x = 7,382.86 × 1,590.42
  4. Step 4: Simplify right side
    4,921.27x = 11,741,816.54
  5. Step 5: Solve for x
    x = 11,741,816.54/4,921.27
  6. Step 6: Final answer
    x = 2,385.93

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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.