Home / 3,415.15-4,711.80-1,922.86

Finding the Fourth Proportional to 3,415.15, 4,711.80 and 1,922.86

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Solution

The fourth proportional to 3,415.15, 4,711.80 and 1,922.86 is: 2,652.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.15 : 4,711.80 = 1,922.86 : x
  2. Step 2: Convert to fraction form
    3,415.15/4,711.80 = 1,922.86/x
  3. Step 3: Cross multiply
    3,415.15x = 4,711.80 × 1,922.86
  4. Step 4: Simplify right side
    3,415.15x = 9,060,131.75
  5. Step 5: Solve for x
    x = 9,060,131.75/3,415.15
  6. Step 6: Final answer
    x = 2,652.92

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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.