Home / 4,385.30-6,581.32-1,790.42

Finding the Fourth Proportional to 4,385.30, 6,581.32 and 1,790.42

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Solution

The fourth proportional to 4,385.30, 6,581.32 and 1,790.42 is: 2,687.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,385.30 : 6,581.32 = 1,790.42 : x
  2. Step 2: Convert to fraction form
    4,385.30/6,581.32 = 1,790.42/x
  3. Step 3: Cross multiply
    4,385.30x = 6,581.32 × 1,790.42
  4. Step 4: Simplify right side
    4,385.30x = 11,783,326.95
  5. Step 5: Solve for x
    x = 11,783,326.95/4,385.30
  6. Step 6: Final answer
    x = 2,687.01

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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.