Home / 3,739.50-5,611.31-1,401.12

Finding the Fourth Proportional to 3,739.50, 5,611.31 and 1,401.12

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Solution

The fourth proportional to 3,739.50, 5,611.31 and 1,401.12 is: 2,102.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.50 : 5,611.31 = 1,401.12 : x
  2. Step 2: Convert to fraction form
    3,739.50/5,611.31 = 1,401.12/x
  3. Step 3: Cross multiply
    3,739.50x = 5,611.31 × 1,401.12
  4. Step 4: Simplify right side
    3,739.50x = 7,862,129.74
  5. Step 5: Solve for x
    x = 7,862,129.74/3,739.50
  6. Step 6: Final answer
    x = 2,102.45

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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.