Home / 2,911.30-4,358.37-1,922.29

Finding the Fourth Proportional to 2,911.30, 4,358.37 and 1,922.29

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Solution

The fourth proportional to 2,911.30, 4,358.37 and 1,922.29 is: 2,877.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.30 : 4,358.37 = 1,922.29 : x
  2. Step 2: Convert to fraction form
    2,911.30/4,358.37 = 1,922.29/x
  3. Step 3: Cross multiply
    2,911.30x = 4,358.37 × 1,922.29
  4. Step 4: Simplify right side
    2,911.30x = 8,378,051.07
  5. Step 5: Solve for x
    x = 8,378,051.07/2,911.30
  6. Step 6: Final answer
    x = 2,877.77

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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.