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Finding the Fourth Proportional to 6,259.84, 8,638.50 and 3,775.84

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Solution

The fourth proportional to 6,259.84, 8,638.50 and 3,775.84 is: 5,210.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,259.84 : 8,638.50 = 3,775.84 : x
  2. Step 2: Convert to fraction form
    6,259.84/8,638.50 = 3,775.84/x
  3. Step 3: Cross multiply
    6,259.84x = 8,638.50 × 3,775.84
  4. Step 4: Simplify right side
    6,259.84x = 32,617,593.84
  5. Step 5: Solve for x
    x = 32,617,593.84/6,259.84
  6. Step 6: Final answer
    x = 5,210.61

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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.