Home / 5,616.55-8,424.83-1,720.45

Finding the Fourth Proportional to 5,616.55, 8,424.83 and 1,720.45

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Solution

The fourth proportional to 5,616.55, 8,424.83 and 1,720.45 is: 2,580.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,616.55 : 8,424.83 = 1,720.45 : x
  2. Step 2: Convert to fraction form
    5,616.55/8,424.83 = 1,720.45/x
  3. Step 3: Cross multiply
    5,616.55x = 8,424.83 × 1,720.45
  4. Step 4: Simplify right side
    5,616.55x = 14,494,469.11
  5. Step 5: Solve for x
    x = 14,494,469.11/5,616.55
  6. Step 6: Final answer
    x = 2,580.67

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Similar ratio
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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.