Home / 4,935.74-6,811.49-2,839.87

Finding the Fourth Proportional to 4,935.74, 6,811.49 and 2,839.87

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Solution

The fourth proportional to 4,935.74, 6,811.49 and 2,839.87 is: 3,919.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,935.74 : 6,811.49 = 2,839.87 : x
  2. Step 2: Convert to fraction form
    4,935.74/6,811.49 = 2,839.87/x
  3. Step 3: Cross multiply
    4,935.74x = 6,811.49 × 2,839.87
  4. Step 4: Simplify right side
    4,935.74x = 19,343,697.85
  5. Step 5: Solve for x
    x = 19,343,697.85/4,935.74
  6. Step 6: Final answer
    x = 3,919.11

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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.