Home / 5,620.23-8,412.39-3,147.57

Finding the Fourth Proportional to 5,620.23, 8,412.39 and 3,147.57

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Solution

The fourth proportional to 5,620.23, 8,412.39 and 3,147.57 is: 4,711.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.23 : 8,412.39 = 3,147.57 : x
  2. Step 2: Convert to fraction form
    5,620.23/8,412.39 = 3,147.57/x
  3. Step 3: Cross multiply
    5,620.23x = 8,412.39 × 3,147.57
  4. Step 4: Simplify right side
    5,620.23x = 26,478,586.39
  5. Step 5: Solve for x
    x = 26,478,586.39/5,620.23
  6. Step 6: Final answer
    x = 4,711.30

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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.