Home / 4,939.84-6,811.20-4,101.52

Finding the Fourth Proportional to 4,939.84, 6,811.20 and 4,101.52

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Solution

The fourth proportional to 4,939.84, 6,811.20 and 4,101.52 is: 5,655.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.84 : 6,811.20 = 4,101.52 : x
  2. Step 2: Convert to fraction form
    4,939.84/6,811.20 = 4,101.52/x
  3. Step 3: Cross multiply
    4,939.84x = 6,811.20 × 4,101.52
  4. Step 4: Simplify right side
    4,939.84x = 27,936,273.02
  5. Step 5: Solve for x
    x = 27,936,273.02/4,939.84
  6. Step 6: Final answer
    x = 5,655.30

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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.