Home / 5,129.26-7,695.10-1,666.50

Finding the Fourth Proportional to 5,129.26, 7,695.10 and 1,666.50

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Solution

The fourth proportional to 5,129.26, 7,695.10 and 1,666.50 is: 2,500.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.26 : 7,695.10 = 1,666.50 : x
  2. Step 2: Convert to fraction form
    5,129.26/7,695.10 = 1,666.50/x
  3. Step 3: Cross multiply
    5,129.26x = 7,695.10 × 1,666.50
  4. Step 4: Simplify right side
    5,129.26x = 12,823,884.15
  5. Step 5: Solve for x
    x = 12,823,884.15/5,129.26
  6. Step 6: Final answer
    x = 2,500.14

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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.