Home / 3,625.38-5,438.34-1,405.31

Finding the Fourth Proportional to 3,625.38, 5,438.34 and 1,405.31

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Solution

The fourth proportional to 3,625.38, 5,438.34 and 1,405.31 is: 2,108.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,625.38 : 5,438.34 = 1,405.31 : x
  2. Step 2: Convert to fraction form
    3,625.38/5,438.34 = 1,405.31/x
  3. Step 3: Cross multiply
    3,625.38x = 5,438.34 × 1,405.31
  4. Step 4: Simplify right side
    3,625.38x = 7,642,526.39
  5. Step 5: Solve for x
    x = 7,642,526.39/3,625.38
  6. Step 6: Final answer
    x = 2,108.06

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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.