Home / 5,284.59-7,920.01-2,161.02

Finding the Fourth Proportional to 5,284.59, 7,920.01 and 2,161.02

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Solution

The fourth proportional to 5,284.59, 7,920.01 and 2,161.02 is: 3,238.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,284.59 : 7,920.01 = 2,161.02 : x
  2. Step 2: Convert to fraction form
    5,284.59/7,920.01 = 2,161.02/x
  3. Step 3: Cross multiply
    5,284.59x = 7,920.01 × 2,161.02
  4. Step 4: Simplify right side
    5,284.59x = 17,115,289.21
  5. Step 5: Solve for x
    x = 17,115,289.21/5,284.59
  6. Step 6: Final answer
    x = 3,238.72

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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.