Home / 4,811.40-7,218.15-2,732.40

Finding the Fourth Proportional to 4,811.40, 7,218.15 and 2,732.40

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Solution

The fourth proportional to 4,811.40, 7,218.15 and 2,732.40 is: 4,099.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.40 : 7,218.15 = 2,732.40 : x
  2. Step 2: Convert to fraction form
    4,811.40/7,218.15 = 2,732.40/x
  3. Step 3: Cross multiply
    4,811.40x = 7,218.15 × 2,732.40
  4. Step 4: Simplify right side
    4,811.40x = 19,722,873.06
  5. Step 5: Solve for x
    x = 19,722,873.06/4,811.40
  6. Step 6: Final answer
    x = 4,099.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.