Home / 5,674.16-8,511.40-1,778.80

Finding the Fourth Proportional to 5,674.16, 8,511.40 and 1,778.80

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Solution

The fourth proportional to 5,674.16, 8,511.40 and 1,778.80 is: 2,668.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,674.16 : 8,511.40 = 1,778.80 : x
  2. Step 2: Convert to fraction form
    5,674.16/8,511.40 = 1,778.80/x
  3. Step 3: Cross multiply
    5,674.16x = 8,511.40 × 1,778.80
  4. Step 4: Simplify right side
    5,674.16x = 15,140,078.32
  5. Step 5: Solve for x
    x = 15,140,078.32/5,674.16
  6. Step 6: Final answer
    x = 2,668.25

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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.