Home / 3,658.23-5,048.38-1,979.65

Finding the Fourth Proportional to 3,658.23, 5,048.38 and 1,979.65

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Solution

The fourth proportional to 3,658.23, 5,048.38 and 1,979.65 is: 2,731.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,658.23 : 5,048.38 = 1,979.65 : x
  2. Step 2: Convert to fraction form
    3,658.23/5,048.38 = 1,979.65/x
  3. Step 3: Cross multiply
    3,658.23x = 5,048.38 × 1,979.65
  4. Step 4: Simplify right side
    3,658.23x = 9,994,025.47
  5. Step 5: Solve for x
    x = 9,994,025.47/3,658.23
  6. Step 6: Final answer
    x = 2,731.93

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1.5x scale

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.