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Finding the Fourth Proportional to 6,426.48, 8,865.60 and 3,773.84

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Solution

The fourth proportional to 6,426.48, 8,865.60 and 3,773.84 is: 5,206.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,426.48 : 8,865.60 = 3,773.84 : x
  2. Step 2: Convert to fraction form
    6,426.48/8,865.60 = 3,773.84/x
  3. Step 3: Cross multiply
    6,426.48x = 8,865.60 × 3,773.84
  4. Step 4: Simplify right side
    6,426.48x = 33,457,355.90
  5. Step 5: Solve for x
    x = 33,457,355.90/6,426.48
  6. Step 6: Final answer
    x = 5,206.17

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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.