Home / 5,399.36-8,116.96-4,432.64

Finding the Fourth Proportional to 5,399.36, 8,116.96 and 4,432.64

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Solution

The fourth proportional to 5,399.36, 8,116.96 and 4,432.64 is: 6,663.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,399.36 : 8,116.96 = 4,432.64 : x
  2. Step 2: Convert to fraction form
    5,399.36/8,116.96 = 4,432.64/x
  3. Step 3: Cross multiply
    5,399.36x = 8,116.96 × 4,432.64
  4. Step 4: Simplify right side
    5,399.36x = 35,979,561.57
  5. Step 5: Solve for x
    x = 35,979,561.57/5,399.36
  6. Step 6: Final answer
    x = 6,663.67

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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.