Home / 3,320.06-4,979.93-1,239.91

Finding the Fourth Proportional to 3,320.06, 4,979.93 and 1,239.91

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Solution

The fourth proportional to 3,320.06, 4,979.93 and 1,239.91 is: 1,859.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.06 : 4,979.93 = 1,239.91 : x
  2. Step 2: Convert to fraction form
    3,320.06/4,979.93 = 1,239.91/x
  3. Step 3: Cross multiply
    3,320.06x = 4,979.93 × 1,239.91
  4. Step 4: Simplify right side
    3,320.06x = 6,174,633.91
  5. Step 5: Solve for x
    x = 6,174,633.91/3,320.06
  6. Step 6: Final answer
    x = 1,859.80

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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.