Home / 3,639.77-5,459.43-1,789.02

Finding the Fourth Proportional to 3,639.77, 5,459.43 and 1,789.02

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Solution

The fourth proportional to 3,639.77, 5,459.43 and 1,789.02 is: 2,683.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.77 : 5,459.43 = 1,789.02 : x
  2. Step 2: Convert to fraction form
    3,639.77/5,459.43 = 1,789.02/x
  3. Step 3: Cross multiply
    3,639.77x = 5,459.43 × 1,789.02
  4. Step 4: Simplify right side
    3,639.77x = 9,767,029.46
  5. Step 5: Solve for x
    x = 9,767,029.46/3,639.77
  6. Step 6: Final answer
    x = 2,683.42

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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.