Home / 6,451.86-8,905.16-3,935.35

Finding the Fourth Proportional to 6,451.86, 8,905.16 and 3,935.35

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Solution

The fourth proportional to 6,451.86, 8,905.16 and 3,935.35 is: 5,431.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,451.86 : 8,905.16 = 3,935.35 : x
  2. Step 2: Convert to fraction form
    6,451.86/8,905.16 = 3,935.35/x
  3. Step 3: Cross multiply
    6,451.86x = 8,905.16 × 3,935.35
  4. Step 4: Simplify right side
    6,451.86x = 35,044,921.41
  5. Step 5: Solve for x
    x = 35,044,921.41/6,451.86
  6. Step 6: Final answer
    x = 5,431.75

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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.