Home / 2,911.15-4,017.38-1,584.86

Finding the Fourth Proportional to 2,911.15, 4,017.38 and 1,584.86

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Solution

The fourth proportional to 2,911.15, 4,017.38 and 1,584.86 is: 2,187.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.15 : 4,017.38 = 1,584.86 : x
  2. Step 2: Convert to fraction form
    2,911.15/4,017.38 = 1,584.86/x
  3. Step 3: Cross multiply
    2,911.15x = 4,017.38 × 1,584.86
  4. Step 4: Simplify right side
    2,911.15x = 6,366,984.87
  5. Step 5: Solve for x
    x = 6,366,984.87/2,911.15
  6. Step 6: Final answer
    x = 2,187.10

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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.