Home / 3,625.04-5,438.25-1,284.78

Finding the Fourth Proportional to 3,625.04, 5,438.25 and 1,284.78

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Solution

The fourth proportional to 3,625.04, 5,438.25 and 1,284.78 is: 1,927.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,625.04 : 5,438.25 = 1,284.78 : x
  2. Step 2: Convert to fraction form
    3,625.04/5,438.25 = 1,284.78/x
  3. Step 3: Cross multiply
    3,625.04x = 5,438.25 × 1,284.78
  4. Step 4: Simplify right side
    3,625.04x = 6,986,975.23
  5. Step 5: Solve for x
    x = 6,986,975.23/3,625.04
  6. Step 6: Final answer
    x = 1,927.42

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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.