Home / 3,747.36-5,621.64-1,408.17

Finding the Fourth Proportional to 3,747.36, 5,621.64 and 1,408.17

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Solution

The fourth proportional to 3,747.36, 5,621.64 and 1,408.17 is: 2,112.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.36 : 5,621.64 = 1,408.17 : x
  2. Step 2: Convert to fraction form
    3,747.36/5,621.64 = 1,408.17/x
  3. Step 3: Cross multiply
    3,747.36x = 5,621.64 × 1,408.17
  4. Step 4: Simplify right side
    3,747.36x = 7,916,224.80
  5. Step 5: Solve for x
    x = 7,916,224.80/3,747.36
  6. Step 6: Final answer
    x = 2,112.48

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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.