Home / 6,428.98-8,871.75-3,634.54

Finding the Fourth Proportional to 6,428.98, 8,871.75 and 3,634.54

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Solution

The fourth proportional to 6,428.98, 8,871.75 and 3,634.54 is: 5,015.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.98 : 8,871.75 = 3,634.54 : x
  2. Step 2: Convert to fraction form
    6,428.98/8,871.75 = 3,634.54/x
  3. Step 3: Cross multiply
    6,428.98x = 8,871.75 × 3,634.54
  4. Step 4: Simplify right side
    6,428.98x = 32,244,730.25
  5. Step 5: Solve for x
    x = 32,244,730.25/6,428.98
  6. Step 6: Final answer
    x = 5,015.53

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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.