Home / 5,813.46-8,721.42-1,917.78

Finding the Fourth Proportional to 5,813.46, 8,721.42 and 1,917.78

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Solution

The fourth proportional to 5,813.46, 8,721.42 and 1,917.78 is: 2,877.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,813.46 : 8,721.42 = 1,917.78 : x
  2. Step 2: Convert to fraction form
    5,813.46/8,721.42 = 1,917.78/x
  3. Step 3: Cross multiply
    5,813.46x = 8,721.42 × 1,917.78
  4. Step 4: Simplify right side
    5,813.46x = 16,725,764.85
  5. Step 5: Solve for x
    x = 16,725,764.85/5,813.46
  6. Step 6: Final answer
    x = 2,877.08

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1.5x scale

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.