Home / 3,741.82-5,610.85-1,275.78

Finding the Fourth Proportional to 3,741.82, 5,610.85 and 1,275.78

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Solution

The fourth proportional to 3,741.82, 5,610.85 and 1,275.78 is: 1,913.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,741.82 : 5,610.85 = 1,275.78 : x
  2. Step 2: Convert to fraction form
    3,741.82/5,610.85 = 1,275.78/x
  3. Step 3: Cross multiply
    3,741.82x = 5,610.85 × 1,275.78
  4. Step 4: Simplify right side
    3,741.82x = 7,158,210.21
  5. Step 5: Solve for x
    x = 7,158,210.21/3,741.82
  6. Step 6: Final answer
    x = 1,913.03

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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.