Home / 2,911.20-4,017.54-1,584.99

Finding the Fourth Proportional to 2,911.20, 4,017.54 and 1,584.99

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Solution

The fourth proportional to 2,911.20, 4,017.54 and 1,584.99 is: 2,187.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.20 : 4,017.54 = 1,584.99 : x
  2. Step 2: Convert to fraction form
    2,911.20/4,017.54 = 1,584.99/x
  3. Step 3: Cross multiply
    2,911.20x = 4,017.54 × 1,584.99
  4. Step 4: Simplify right side
    2,911.20x = 6,367,760.72
  5. Step 5: Solve for x
    x = 6,367,760.72/2,911.20
  6. Step 6: Final answer
    x = 2,187.33

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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.