Home / 2,172.02-3,257.98-528.57

Finding the Fourth Proportional to 2,172.02, 3,257.98 and 528.57

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Solution

The fourth proportional to 2,172.02, 3,257.98 and 528.57 is: 792.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.02 : 3,257.98 = 528.57 : x
  2. Step 2: Convert to fraction form
    2,172.02/3,257.98 = 528.57/x
  3. Step 3: Cross multiply
    2,172.02x = 3,257.98 × 528.57
  4. Step 4: Simplify right side
    2,172.02x = 1,722,070.49
  5. Step 5: Solve for x
    x = 1,722,070.49/2,172.02
  6. Step 6: Final answer
    x = 792.84

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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.