Home / 5,110.60-7,665.90-1,647.88

Finding the Fourth Proportional to 5,110.60, 7,665.90 and 1,647.88

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Solution

The fourth proportional to 5,110.60, 7,665.90 and 1,647.88 is: 2,471.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.60 : 7,665.90 = 1,647.88 : x
  2. Step 2: Convert to fraction form
    5,110.60/7,665.90 = 1,647.88/x
  3. Step 3: Cross multiply
    5,110.60x = 7,665.90 × 1,647.88
  4. Step 4: Simplify right side
    5,110.60x = 12,632,483.29
  5. Step 5: Solve for x
    x = 12,632,483.29/5,110.60
  6. Step 6: Final answer
    x = 2,471.82

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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.