Home / 5,580.86-8,367.18-2,661.21

Finding the Fourth Proportional to 5,580.86, 8,367.18 and 2,661.21

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Solution

The fourth proportional to 5,580.86, 8,367.18 and 2,661.21 is: 3,989.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,580.86 : 8,367.18 = 2,661.21 : x
  2. Step 2: Convert to fraction form
    5,580.86/8,367.18 = 2,661.21/x
  3. Step 3: Cross multiply
    5,580.86x = 8,367.18 × 2,661.21
  4. Step 4: Simplify right side
    5,580.86x = 22,266,813.11
  5. Step 5: Solve for x
    x = 22,266,813.11/5,580.86
  6. Step 6: Final answer
    x = 3,989.86

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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.