Home / 4,931.36-6,800.16-3,986.24

Finding the Fourth Proportional to 4,931.36, 6,800.16 and 3,986.24

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Solution

The fourth proportional to 4,931.36, 6,800.16 and 3,986.24 is: 5,496.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.36 : 6,800.16 = 3,986.24 : x
  2. Step 2: Convert to fraction form
    4,931.36/6,800.16 = 3,986.24/x
  3. Step 3: Cross multiply
    4,931.36x = 6,800.16 × 3,986.24
  4. Step 4: Simplify right side
    4,931.36x = 27,107,069.80
  5. Step 5: Solve for x
    x = 27,107,069.80/4,931.36
  6. Step 6: Final answer
    x = 5,496.88

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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.