Home / 4,088.62-6,129.68-1,778.50

Finding the Fourth Proportional to 4,088.62, 6,129.68 and 1,778.50

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Solution

The fourth proportional to 4,088.62, 6,129.68 and 1,778.50 is: 2,666.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,088.62 : 6,129.68 = 1,778.50 : x
  2. Step 2: Convert to fraction form
    4,088.62/6,129.68 = 1,778.50/x
  3. Step 3: Cross multiply
    4,088.62x = 6,129.68 × 1,778.50
  4. Step 4: Simplify right side
    4,088.62x = 10,901,635.88
  5. Step 5: Solve for x
    x = 10,901,635.88/4,088.62
  6. Step 6: Final answer
    x = 2,666.34

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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.