Home / 3,749.02-5,621.60-2,105.12

Finding the Fourth Proportional to 3,749.02, 5,621.60 and 2,105.12

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Solution

The fourth proportional to 3,749.02, 5,621.60 and 2,105.12 is: 3,156.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.02 : 5,621.60 = 2,105.12 : x
  2. Step 2: Convert to fraction form
    3,749.02/5,621.60 = 2,105.12/x
  3. Step 3: Cross multiply
    3,749.02x = 5,621.60 × 2,105.12
  4. Step 4: Simplify right side
    3,749.02x = 11,834,161.91
  5. Step 5: Solve for x
    x = 11,834,161.91/3,749.02
  6. Step 6: Final answer
    x = 3,156.60

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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.