Home / 4,191.40-6,287.10-2,731.78

Finding the Fourth Proportional to 4,191.40, 6,287.10 and 2,731.78

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Solution

The fourth proportional to 4,191.40, 6,287.10 and 2,731.78 is: 4,097.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.40 : 6,287.10 = 2,731.78 : x
  2. Step 2: Convert to fraction form
    4,191.40/6,287.10 = 2,731.78/x
  3. Step 3: Cross multiply
    4,191.40x = 6,287.10 × 2,731.78
  4. Step 4: Simplify right side
    4,191.40x = 17,174,974.04
  5. Step 5: Solve for x
    x = 17,174,974.04/4,191.40
  6. Step 6: Final answer
    x = 4,097.67

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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.