Home / 3,756.79-5,184.56-2,163.68

Finding the Fourth Proportional to 3,756.79, 5,184.56 and 2,163.68

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Solution

The fourth proportional to 3,756.79, 5,184.56 and 2,163.68 is: 2,985.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,756.79 : 5,184.56 = 2,163.68 : x
  2. Step 2: Convert to fraction form
    3,756.79/5,184.56 = 2,163.68/x
  3. Step 3: Cross multiply
    3,756.79x = 5,184.56 × 2,163.68
  4. Step 4: Simplify right side
    3,756.79x = 11,217,728.78
  5. Step 5: Solve for x
    x = 11,217,728.78/3,756.79
  6. Step 6: Final answer
    x = 2,985.99

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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.