Home / 6,428.84-8,871.72-3,634.16

Finding the Fourth Proportional to 6,428.84, 8,871.72 and 3,634.16

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Solution

The fourth proportional to 6,428.84, 8,871.72 and 3,634.16 is: 5,015.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.84 : 8,871.72 = 3,634.16 : x
  2. Step 2: Convert to fraction form
    6,428.84/8,871.72 = 3,634.16/x
  3. Step 3: Cross multiply
    6,428.84x = 8,871.72 × 3,634.16
  4. Step 4: Simplify right side
    6,428.84x = 32,241,249.96
  5. Step 5: Solve for x
    x = 32,241,249.96/6,428.84
  6. Step 6: Final answer
    x = 5,015.10

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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.