Home / 3,305.90-4,562.13-1,813.78

Finding the Fourth Proportional to 3,305.90, 4,562.13 and 1,813.78

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Solution

The fourth proportional to 3,305.90, 4,562.13 and 1,813.78 is: 2,503.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,305.90 : 4,562.13 = 1,813.78 : x
  2. Step 2: Convert to fraction form
    3,305.90/4,562.13 = 1,813.78/x
  3. Step 3: Cross multiply
    3,305.90x = 4,562.13 × 1,813.78
  4. Step 4: Simplify right side
    3,305.90x = 8,274,700.15
  5. Step 5: Solve for x
    x = 8,274,700.15/3,305.90
  6. Step 6: Final answer
    x = 2,503.01

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1.5x scale

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.