Home / 5,250.72-7,876.20-1,788

Finding the Fourth Proportional to 5,250.72, 7,876.20 and 1,788

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Solution

The fourth proportional to 5,250.72, 7,876.20 and 1,788 is: 2,682.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,250.72 : 7,876.20 = 1,788 : x
  2. Step 2: Convert to fraction form
    5,250.72/7,876.20 = 1,788/x
  3. Step 3: Cross multiply
    5,250.72x = 7,876.20 × 1,788
  4. Step 4: Simplify right side
    5,250.72x = 14,082,645.60
  5. Step 5: Solve for x
    x = 14,082,645.60/5,250.72
  6. Step 6: Final answer
    x = 2,682.04

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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.