Home / 5,499.64-8,247.38-1,988.72

Finding the Fourth Proportional to 5,499.64, 8,247.38 and 1,988.72

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Solution

The fourth proportional to 5,499.64, 8,247.38 and 1,988.72 is: 2,982.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,499.64 : 8,247.38 = 1,988.72 : x
  2. Step 2: Convert to fraction form
    5,499.64/8,247.38 = 1,988.72/x
  3. Step 3: Cross multiply
    5,499.64x = 8,247.38 × 1,988.72
  4. Step 4: Simplify right side
    5,499.64x = 16,401,729.55
  5. Step 5: Solve for x
    x = 16,401,729.55/5,499.64
  6. Step 6: Final answer
    x = 2,982.33

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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.