Home / 3,205.51-4,423.39-1,807.99

Finding the Fourth Proportional to 3,205.51, 4,423.39 and 1,807.99

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Solution

The fourth proportional to 3,205.51, 4,423.39 and 1,807.99 is: 2,494.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.51 : 4,423.39 = 1,807.99 : x
  2. Step 2: Convert to fraction form
    3,205.51/4,423.39 = 1,807.99/x
  3. Step 3: Cross multiply
    3,205.51x = 4,423.39 × 1,807.99
  4. Step 4: Simplify right side
    3,205.51x = 7,997,444.89
  5. Step 5: Solve for x
    x = 7,997,444.89/3,205.51
  6. Step 6: Final answer
    x = 2,494.91

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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.