Home / 5,492.60-8,222.70-5,172.20

Finding the Fourth Proportional to 5,492.60, 8,222.70 and 5,172.20

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Solution

The fourth proportional to 5,492.60, 8,222.70 and 5,172.20 is: 7,743.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,492.60 : 8,222.70 = 5,172.20 : x
  2. Step 2: Convert to fraction form
    5,492.60/8,222.70 = 5,172.20/x
  3. Step 3: Cross multiply
    5,492.60x = 8,222.70 × 5,172.20
  4. Step 4: Simplify right side
    5,492.60x = 42,529,448.94
  5. Step 5: Solve for x
    x = 42,529,448.94/5,492.60
  6. Step 6: Final answer
    x = 7,743.04

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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.