Home / 4,385.70-6,580.92-1,788

Finding the Fourth Proportional to 4,385.70, 6,580.92 and 1,788

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Solution

The fourth proportional to 4,385.70, 6,580.92 and 1,788 is: 2,682.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,385.70 : 6,580.92 = 1,788 : x
  2. Step 2: Convert to fraction form
    4,385.70/6,580.92 = 1,788/x
  3. Step 3: Cross multiply
    4,385.70x = 6,580.92 × 1,788
  4. Step 4: Simplify right side
    4,385.70x = 11,766,684.96
  5. Step 5: Solve for x
    x = 11,766,684.96/4,385.70
  6. Step 6: Final answer
    x = 2,682.97

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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.