Home / 3,625.49-5,438.27-1,285.51

Finding the Fourth Proportional to 3,625.49, 5,438.27 and 1,285.51

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Solution

The fourth proportional to 3,625.49, 5,438.27 and 1,285.51 is: 1,928.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,625.49 : 5,438.27 = 1,285.51 : x
  2. Step 2: Convert to fraction form
    3,625.49/5,438.27 = 1,285.51/x
  3. Step 3: Cross multiply
    3,625.49x = 5,438.27 × 1,285.51
  4. Step 4: Simplify right side
    3,625.49x = 6,990,944.04
  5. Step 5: Solve for x
    x = 6,990,944.04/3,625.49
  6. Step 6: Final answer
    x = 1,928.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.