Home / 3,658.15-5,048.29-1,979.59

Finding the Fourth Proportional to 3,658.15, 5,048.29 and 1,979.59

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Solution

The fourth proportional to 3,658.15, 5,048.29 and 1,979.59 is: 2,731.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,658.15 : 5,048.29 = 1,979.59 : x
  2. Step 2: Convert to fraction form
    3,658.15/5,048.29 = 1,979.59/x
  3. Step 3: Cross multiply
    3,658.15x = 5,048.29 × 1,979.59
  4. Step 4: Simplify right side
    3,658.15x = 9,993,539.45
  5. Step 5: Solve for x
    x = 9,993,539.45/3,658.15
  6. Step 6: Final answer
    x = 2,731.86

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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.