Home / 5,125.22-7,688.01-1,662.50

Finding the Fourth Proportional to 5,125.22, 7,688.01 and 1,662.50

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Solution

The fourth proportional to 5,125.22, 7,688.01 and 1,662.50 is: 2,493.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.22 : 7,688.01 = 1,662.50 : x
  2. Step 2: Convert to fraction form
    5,125.22/7,688.01 = 1,662.50/x
  3. Step 3: Cross multiply
    5,125.22x = 7,688.01 × 1,662.50
  4. Step 4: Simplify right side
    5,125.22x = 12,781,316.63
  5. Step 5: Solve for x
    x = 12,781,316.63/5,125.22
  6. Step 6: Final answer
    x = 2,493.81

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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.