Home / 3,628.50-5,415.34-3,278.58

Finding the Fourth Proportional to 3,628.50, 5,415.34 and 3,278.58

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Solution

The fourth proportional to 3,628.50, 5,415.34 and 3,278.58 is: 4,893.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,628.50 : 5,415.34 = 3,278.58 : x
  2. Step 2: Convert to fraction form
    3,628.50/5,415.34 = 3,278.58/x
  3. Step 3: Cross multiply
    3,628.50x = 5,415.34 × 3,278.58
  4. Step 4: Simplify right side
    3,628.50x = 17,754,625.42
  5. Step 5: Solve for x
    x = 17,754,625.42/3,628.50
  6. Step 6: Final answer
    x = 4,893.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.