Home / 3,937.47-5,401.14-3,855.45

Finding the Fourth Proportional to 3,937.47, 5,401.14 and 3,855.45

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Solution

The fourth proportional to 3,937.47, 5,401.14 and 3,855.45 is: 5,288.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.47 : 5,401.14 = 3,855.45 : x
  2. Step 2: Convert to fraction form
    3,937.47/5,401.14 = 3,855.45/x
  3. Step 3: Cross multiply
    3,937.47x = 5,401.14 × 3,855.45
  4. Step 4: Simplify right side
    3,937.47x = 20,823,825.21
  5. Step 5: Solve for x
    x = 20,823,825.21/3,937.47
  6. Step 6: Final answer
    x = 5,288.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.