Home / 3,741.40-5,611.92-1,276.12

Finding the Fourth Proportional to 3,741.40, 5,611.92 and 1,276.12

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Solution

The fourth proportional to 3,741.40, 5,611.92 and 1,276.12 is: 1,914.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,741.40 : 5,611.92 = 1,276.12 : x
  2. Step 2: Convert to fraction form
    3,741.40/5,611.92 = 1,276.12/x
  3. Step 3: Cross multiply
    3,741.40x = 5,611.92 × 1,276.12
  4. Step 4: Simplify right side
    3,741.40x = 7,161,483.35
  5. Step 5: Solve for x
    x = 7,161,483.35/3,741.40
  6. Step 6: Final answer
    x = 1,914.12

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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.