Home / 3,727.47-5,142.85-2,401.64

Finding the Fourth Proportional to 3,727.47, 5,142.85 and 2,401.64

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Solution

The fourth proportional to 3,727.47, 5,142.85 and 2,401.64 is: 3,313.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.47 : 5,142.85 = 2,401.64 : x
  2. Step 2: Convert to fraction form
    3,727.47/5,142.85 = 2,401.64/x
  3. Step 3: Cross multiply
    3,727.47x = 5,142.85 × 2,401.64
  4. Step 4: Simplify right side
    3,727.47x = 12,351,274.27
  5. Step 5: Solve for x
    x = 12,351,274.27/3,727.47
  6. Step 6: Final answer
    x = 3,313.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.