Home / 5,728.19-8,591.87-1,779.34

Finding the Fourth Proportional to 5,728.19, 8,591.87 and 1,779.34

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Solution

The fourth proportional to 5,728.19, 8,591.87 and 1,779.34 is: 2,668.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.19 : 8,591.87 = 1,779.34 : x
  2. Step 2: Convert to fraction form
    5,728.19/8,591.87 = 1,779.34/x
  3. Step 3: Cross multiply
    5,728.19x = 8,591.87 × 1,779.34
  4. Step 4: Simplify right side
    5,728.19x = 15,287,857.97
  5. Step 5: Solve for x
    x = 15,287,857.97/5,728.19
  6. Step 6: Final answer
    x = 2,668.88

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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.