Home / 4,819.78-6,651.45-2,666.35

Finding the Fourth Proportional to 4,819.78, 6,651.45 and 2,666.35

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Solution

The fourth proportional to 4,819.78, 6,651.45 and 2,666.35 is: 3,679.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,819.78 : 6,651.45 = 2,666.35 : x
  2. Step 2: Convert to fraction form
    4,819.78/6,651.45 = 2,666.35/x
  3. Step 3: Cross multiply
    4,819.78x = 6,651.45 × 2,666.35
  4. Step 4: Simplify right side
    4,819.78x = 17,735,102.02
  5. Step 5: Solve for x
    x = 17,735,102.02/4,819.78
  6. Step 6: Final answer
    x = 3,679.65

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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.