Home / 6,406.72-8,840.60-3,753.63

Finding the Fourth Proportional to 6,406.72, 8,840.60 and 3,753.63

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Solution

The fourth proportional to 6,406.72, 8,840.60 and 3,753.63 is: 5,179.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,406.72 : 8,840.60 = 3,753.63 : x
  2. Step 2: Convert to fraction form
    6,406.72/8,840.60 = 3,753.63/x
  3. Step 3: Cross multiply
    6,406.72x = 8,840.60 × 3,753.63
  4. Step 4: Simplify right side
    6,406.72x = 33,184,363.48
  5. Step 5: Solve for x
    x = 33,184,363.48/6,406.72
  6. Step 6: Final answer
    x = 5,179.62

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1.5x scale

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.