Home / 5,811.13-8,709.40-2,884.20

Finding the Fourth Proportional to 5,811.13, 8,709.40 and 2,884.20

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Solution

The fourth proportional to 5,811.13, 8,709.40 and 2,884.20 is: 4,322.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.13 : 8,709.40 = 2,884.20 : x
  2. Step 2: Convert to fraction form
    5,811.13/8,709.40 = 2,884.20/x
  3. Step 3: Cross multiply
    5,811.13x = 8,709.40 × 2,884.20
  4. Step 4: Simplify right side
    5,811.13x = 25,119,651.48
  5. Step 5: Solve for x
    x = 25,119,651.48/5,811.13
  6. Step 6: Final answer
    x = 4,322.68

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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.