Home / 6,811.18-10,218.30-2,651.20

Finding the Fourth Proportional to 6,811.18, 10,218.30 and 2,651.20

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Solution

The fourth proportional to 6,811.18, 10,218.30 and 2,651.20 is: 3,977.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.18 : 10,218.30 = 2,651.20 : x
  2. Step 2: Convert to fraction form
    6,811.18/10,218.30 = 2,651.20/x
  3. Step 3: Cross multiply
    6,811.18x = 10,218.30 × 2,651.20
  4. Step 4: Simplify right side
    6,811.18x = 27,090,756.96
  5. Step 5: Solve for x
    x = 27,090,756.96/6,811.18
  6. Step 6: Final answer
    x = 3,977.40

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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.