Home / 5,129.61-7,694.82-1,666.86

Finding the Fourth Proportional to 5,129.61, 7,694.82 and 1,666.86

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Solution

The fourth proportional to 5,129.61, 7,694.82 and 1,666.86 is: 2,500.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.61 : 7,694.82 = 1,666.86 : x
  2. Step 2: Convert to fraction form
    5,129.61/7,694.82 = 1,666.86/x
  3. Step 3: Cross multiply
    5,129.61x = 7,694.82 × 1,666.86
  4. Step 4: Simplify right side
    5,129.61x = 12,826,187.67
  5. Step 5: Solve for x
    x = 12,826,187.67/5,129.61
  6. Step 6: Final answer
    x = 2,500.42

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1.5x scale

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.