Home / 6,430.64-8,874.50-3,778.00

Finding the Fourth Proportional to 6,430.64, 8,874.50 and 3,778.00

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Solution

The fourth proportional to 6,430.64, 8,874.50 and 3,778.00 is: 5,213.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430.64 : 8,874.50 = 3,778.00 : x
  2. Step 2: Convert to fraction form
    6,430.64/8,874.50 = 3,778.00/x
  3. Step 3: Cross multiply
    6,430.64x = 8,874.50 × 3,778.00
  4. Step 4: Simplify right side
    6,430.64x = 33,527,819.92
  5. Step 5: Solve for x
    x = 33,527,819.92/6,430.64
  6. Step 6: Final answer
    x = 5,213.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.